Module 1
Overview of Sports Nutrition
A. Training, Nutrition, and the Athlete
Exercise physiology is the science of the response and adaptation of bodily
systems to the challenge imposed by movement—physical activity, exercise, and
sport. Nutrition is the science of the ingestion, digestion, absorption, metabolism, and
biochemical functions of nutrients. Sports nutrition is the integration and application
of scientifically based nutrition and exercise physiology principles that support and
enhance training, performance, and recovery. These principles also help athletes attain
and maintain good health.
The word athlete describes a person who participates in a sport. Using that
definition, professional, collegiate, and weekend golfers are all athletes. Clearly there
are differences among them. One difference is skill and another is training. Elite
athletes are exceptionally skilled and dedicated to their training regimens. Their lives
are planned around their training and competition schedules because athletic
competition is their profession. Collegiate athletes are also trained athletes, although
the level of their training is probably less than that of their professional counterparts.
Dedication to training is important because proper training is necessary to improve
and maintain performance. Many people are recreational athletes. Some of them are
former competitive athletes who continue to train, albeit at a lower level, to remain
competitive within their age group or in masters events. They are sometimes referred
to as performance-focused recreational athletes. However, many recreational athletes
train little, if at all, and their primary focus is not improving performance. They
participate in sports to be physically active, to maintain a healthy lifestyle, and for
enjoyment.
Physical activity is bodily movement that results in an increase in energy
expenditure above resting levels. Examples can include activities of daily living such
as bathing, walking the dog, raking leaves, or carrying bags of groceries. Exercise and
sport are very specific types of physical activity. Exercise has been defined as
“physical activity that is planned, structured, repetitive, and purposive in the sense
that improvement or maintenance of one or more components of physical fitness is
the key” (Caspersen, Powell, and Christensen, 1985). For example, running is a
specific type of physical activity that is often done regularly by people who hope to
improve their cardiovascular fitness. Sports can be thought of as competitive physical
activities. Track, cross country, or road running (for example, marathon) are examples
of running as a sport.
Exercise may be described as aerobic or anaerobic. Aerobic means “with
oxygen” and is used in reference to exercise or activity that primarily uses the
oxygen-dependent energy system—oxidative phosphorylation (see Chapter 3). These
types of activities can be sustained for a prolonged period of time and are referred to
as endurance activities. Those who engage in them are referred to as endurance
athletes. Some endurance athletes are better described as ultra endurance athletes
because they engage in sports that require hours and hours of continuous activity, such
as triathlons. Endurance and ultra endurance athletes are concerned about the same
issues, such as adequate carbohydrate and fluid intake, but there are enough
differences between them that their concerns are often addressed separately.
Anaerobic means “without oxygen” and is used in reference to exercise that
primarily uses one or both of the energy systems that are not dependent on oxygen—
creatine phosphate or anaerobic glycolysis (see Chapter 3). These types of activities
are short in duration and high in exercise intensity. Athletes in high-intensity, short-
duration sports are often called strength athletes or strength/ power athletes. Although
few sports are truly anaerobic, and weight lifting to strengthen muscles is usually a
part of an endurance athlete's training, strength athlete and endurance athlete are terms
that are commonly used.
The longtime columnist, book author, and running philosopher George
Sheehan (1980) once wrote that everyone is an athlete; only some of us are not in
training. Athletes improve their sports performance through skill development and
training. Skill development is enhanced through practice and instruction or coaching.
Success in many sports is directly related to fitness levels achieved by sport-specific
training. For example, to be successful, competitive distance runners must have a high
level of cardiovascular fitness, which is developed through following a rigorous
running training program.
Although nutrition by itself is important, it may have the greatest performance
impact by allowing athletes to train consistently. Proper nutrition during the recovery
period is essential for replenishing nutrient stores depleted during training, for
example, muscle glycogen. Inadequate replenishment of energy, fluid, carbohydrates,
proteins, and/or vitamins and minerals limits the potential for full recovery after
training. Limited recovery can result in fatigue during the next training session, and
consistent lack of nutritional replenishment can lead to chronic fatigue.
Adaptation occurs as a result of a stimulus that stresses the body. The stimulus
must be of sufficient magnitude to cause enough stress to warrant longer-term
changes by the body. Stimulus of this magnitude is called overload. If exposed to an
overload stimulus repeatedly, the body will adapt over time to that level of stimulus.
For further adaptation to occur, the overload stimulus must be progressively
increased. For example, in order for the biceps muscles to get stronger, an athlete
must perform a weight-lifting exercise like an arm curl. The muscles will not get
stronger curling the weight of a pencil; rather, the weight must be heavy enough to
achieve overload. Once the muscles have adapted to that weight, they will not get any
stronger until the overload stimulus is progressively increased (that is, the weight is
increased further).
Although general training principles apply to all people, individuals may
respond and adapt slightly differently, even when exposed to the same training
stimulus. Two similar athletes that follow the same strength-training program will
both improve their strength, but it is likely that the amount and rate of change in
strength will be slightly different. People do not respond in precisely the same way or
time frame, so individual differences must be taken into account when considering an
athlete's training program. The type of physiological responses and eventual
adaptations will be specific to the type of stimulus and stress imposed on the body. In
the most general sense, aerobic exercise will result primar ily in cardiovascular
adaptations and resistance training will result in neuromuscular adaptations.
Adaptations can be more subtle and specific, such as the effect intensity and duration
of aerobic exercise may have on changes in energy system pathways such as
carbohydrate and fat metabolism.
The stimulus part of training receives the most attention, but often neglected
are the rest and recovery that are required for the adaptation to occur. Training
programs are usually designed so that hard physical efforts are followed by training
sessions with less physical stress to allow for the rest necessary for optimal
adaptation. Adhering to the principle of specificity, training programs are also often
arranged in time periods according to the specific adaptation that is sought. For
example, competitive long distance runners may spend a portion of their yearly
training time concentrating on running longer distances to improve their maximal
aerobic capacity and endurance, and another portion of their training time running
shorter distances at higher intensity to improve their speed.
A macrocycle is an overall time period that begins at the onset of training and
includes the time leading up to a specific athletic goal, such as an important
competition. For an athlete seeking to peak at the annual national championship, the
macrocycle may be a calendar year. A macrocycle may be longer (for example, 4
years for an athlete concentrating on the Olympics) or shorter (for example, 6 months
for a distance runner training for a springtime marathon), depending upon the specific
competitive goals of the athlete. A macrocycle is subdivided into time frames called
mesocycles, each having a specific training purpose. As with the macrocycle, the
mesocycles may be of varying lengths of time, depending upon the athlete's goals, but
typically are weeks or months in duration. The competitive distance runner may have
a mesocycle focused on improving aerobic capacity and endurance and another
mesocycle focused on improving speed. Each mesocycle is made up of repeated time
intervals called microcycles. Microcycles are often designed to coincide with the
weekly calendar, but can vary from the standard 7-day week, depending upon the
athlete’s specific needs. Weekly training mileage for the competitive distance runner
is an example of a microcycle.
Just as the body adapts positively in response to training stress, it can adapt
negatively, or atrophy, if stress is insufficient or absent. Gradual erosion of
physiological capacity over time is often observed in individuals as a result of
sedentary lifestyles. Athletes who have improved function through training can
experience the loss of function, either intentionally for short periods (for example,
resting during the “off-season”) or unintentionally due to forced inactivity from
injury. This is the physiological equivalent of the aphorism “Use it, or lose it.”
Training periodization involves changing the intensity, volume, and specificity
of training to achieve specific goals. It is imperative that a parallel nutrition plan be
developed to support the various training cycles. This plan may be referred to as
nutrition periodization. The nutrition plan should match the training plan. If the
training macrocycle is one year, then the athlete should also have an annual nutrition
plan. Each mesocycle will have specific nutrition goals as well. For example, weight
loss by an endurance athlete is usually planned to take place during a recovery period
(“off-season” and early in the preparation period so a restrictedcalorie diet can be
avoided during high-volume training periods or during the competitive season. During
each microcycle, refinements are made to dietary intake.
B. Basic Nutrition Standards and Guidelines
Sports nutrition principles are based on sound general nutrition principles that
have been modified to reflect the demands of training and competition. General
guidelines help all people, including athletes, to achieve optimal nutritional health
over a lifetime. An optimal diet is one in which there are neither deficiencies nor
excesses. The early focus of nutrition research was on the amount and type of
nutrients needed to prevent deficiencies. Once nutrient deficiency diseases were well
understood the research focus. changed to the amount and type of nutrients that help
prevent chronic diseases. A chronic disease is one that progresses slowly, such as
heart disease or osteoporosis (that is, loss of bone mineral density). These diseases are
a reflection of longterm, not short-term, nutrient intake. Keeping in mind the need to
prevent nutrient deficiencies as well as nutrient excesses, guidelines have been
established for energy (calories), carbohydrates, proteins, and fats, fiber, vitamins,
minerals, electrolytes (for example, sodium or potassium), and water. These
guidelines are known as the Dietary Reference Intakes.
The DRI are based on the Recommended Dietary Allowance whenever
possible. When an RDA cannot be determined, the Adequate Intake (AI) becomes the
reference value for the DRI. The AI is not as scientifically strong since it is based on
estimates or approximations derived from scientific research. The Dietary Reference
Intakes and the reference value used for each vitamin and mineral are found on the
inside gatefold of this textbook. Values for other nutrients are found in Appendix A.
The use of the term RDA has caused some confusion. For many years, the RDA was
the standard, but now is one of the reference values used to compile the DRI, the
current standard.
MyPyramid is designed to convey several general messages: physical activity,
variety, proportionality, moderation, gradual improvement, and personalization.
Physical activity is represented by a figure climbing steps. This is symbolic of the
need for daily physical activity. The colored bands represent variety, with each band
depicting a different food group. The size of the band suggests how much food should
be chosen from that group in proportion to the other groups. For example, the largest
band is orange, which represents grains. The message is that grains should be the
largest proportion of food in the total diet. The yellow band, which represents oils, is
the smallest band. Moderation is depicted by the narrowing of the bands from the
bottom to the top of the pyramid. The foods at the bottom of each group (except oils)
represent those foods with little solid fat or sugar. As the band narrows, the foods in
that group contain more fat and sugar. The slogan is steps to a healthier you, a phrase
that suggests that improvement will be gradual.
Another diet-planning tool is the Food Exchange System, often referred to as
the exchange lists. This system categorizes foods based on their carbohydrate, protein,
and fat contents (American Diabetes Association and American Dietetic Association,
2008). There are three groups—carbohydrate, meat and meat substitutes, and fat—
with the carbohydrate and meat groups containing several subgroups. The foods on
each list can be “exchanged” for another food on the same list because each has
approximately the same macronutrient content for the portion size listed. For
example, one small banana (~4 ounces [oz]) has approximately 15 g of carbohydrates
and 60 kilocalories (kcal), about the same as one small orange.
However, foods are broadly categorized according to macronutrient content
and there can be substantial micronutrient (that is, vitamin and mineral) differences
between foods on the same list. For example, an orange is an excellent source of
vitamin C (~70 mg) whereas a banana has little (~10 mg). The starch list contains
whole wheat and white bread, foods with equivalent amounts of carbohydrates,
proteins, and fats. However, whole wheat bread is a nutritionally superior food to
white bread because of the fiber and trace mineral contents. Additionally, each food
listed does not have the same portion size. On the fat exchange list, the portion size
for avocado is 2 tablespoons whereas the portion size for oil is considerably smaller, 1
teaspoon.
C. Basic Sports Nutrition Guidelines
Sports nutrition recommendations build upon and refine basic nutrition
guidelines. Athletes need to understand and apply general nutrition principles before
making modifi- cations to reflect their training and sport-specific nutrient demands.
Ultimately, sports nutrition recommendations are fine-tuned and are as precise as
possible to closely meet the unique demands of training and competition in the
athlete's sport and reflect the needs of the individual athlete. Here is a brief overview
of some key sports nutrition recommendations.
An adequate amount of energy is needed to support training and performance
and to maintain good health. Appropriate amounts of food should be consumed daily
to avoid long-term energy deficits or excesses. Adjustments to energy intake for the
purpose of weight or fat loss should be made slowly and started early enough in the
training mesocycle (for example, off-season or well prior to the competitive season)
so as not to interfere with training or performance. kilogram (kg) of body weight per
day is recommended. The daily amount needed depends on the sport, type of training,
gender, and need for carbohydrate loading. Timing is also important, and
recommendations for carbohydrate intake before, during, and after exercise are made.
Athletes should meet the DRI for all vitamins and minerals. The DRI can be
met if energy intake is adequate and foods consumed are nutrient dense (that is,
abundant nutrients in relation to caloric content). Any recommendation for vitamin or
mineral supplementation should be based on an analysis of the athlete’s usual diet. In
addition to the above recommendations, there are a number of other critical areas that
involve diet. Some athletes focus on scale weight since weight may be a sport
participation criterion, but attaining a particular weight should be done in a healthy
manner. Disordered eating (that is, abnormal eating patterns) and eating disorders,
such as anorexia or bulimia, are concerns for individual athletes as well as teammates,
coaches, parents, and anyone else who works with athletes. Athletes need a
tremendous amount of information about dietary supplements, since the decision to
use them should be based on safety, effectiveness, purity, legality, and ethics. All of
these issues are covered in depth in the chapters of this text.
The basic sports nutrition guidelines are a good starting point for both strength
and endurance athletes, but they must be modified according to the athlete’s sport.
The sport of running provides an excellent example. Sprinters, such as 100 m and 200
m runners, spend hours in training but only seconds in competition and have no need
for food or fluid during exercise. They need a moderate amount of carbohydrate daily
to support training and performance. In contrast, long distance runners, such as
marathon runners, spend hours in training and competition and must determine the
right combination of food and beverages during exercise to provide them the fuel and
fluid they need. The amount of carbohydrate used and the volume of fluid lost during
a training session can be substantial and they need to replenish both before the next
training session. A high carbohydrate intake daily is important and in the days prior to
competition carbohydrate intake is monitored to make sure that muscle glycogen
stores are maximized. The precompetition meal is very important but must be tested
during training because gastrointestinal distress could interfere with the race. Cycling
and swimming are other sports in which the distance covered influences food and
fluid requirements.
In track and field, the nutrition-related issues of “throwers” and “jumpers” are
different, in part because one group is throwing an object and the other is hurling the
body. Shot putters and discus, hammer, and javelin throwers benefit from being large-
bodied and strong. Body fat adds to total body weight, which can be a performance
advantage because it adds mass. However, some of these athletes readily gain
abdominal fat, which may not affect performance but may be detrimental to health. In
contrast, jumpers generally do not want excess body fat because it negatively affects
their ability to perform sports such as high jump, long jump, triple jump, or pole vault.
Both throwers and jumpers are strength/power athletes but they focus on different
nutrition-related issues.
Many sports are team sports and it is important to consider the demands of
each position. For example, weight and body composition vary in baseball outfielders,
in part, because of their offensive skills. Some hit for power whereas others hit to get
on base, steal bases, and score on base hits. Power hitters benefit from greater body
weight whereas fast base runners are likely to have a lower body weight when
compared to players who hit for power. Sports in which position plays a major role
include baseball, basketball, football, ice and field hockey, lacrosse, rugby, soccer, and
softball.
D. Dietary Supplements
The Dietary Supplement Health and Education Act (DSHEA), passed in 1994,
provides a legal definition for the term dietary supplement in the United States. A
dietary supplement is defined as a “vitamin, mineral, herb, botanical, amino acid,
metabolite, constituent, extract, or a combination of any of these ingredients” (Food
and Drug Administration, 1994). This broad definition results in supplements that
have very different functions and safety profiles being grouped together. This
legislation also provides labeling guidelines, such as the requirements for the
Supplement Facts label.
It is important to know what the law does not cover. DSHEA does not ensure
safety or effectiveness. The Food and Drug Administration (FDA) does not have the
authority to require that a dietary supplement be approved for safety before it is
marketed. In other words, any dietary supplement that appears on the market is
presumed to be safe. The FDA must prove that a supple- ment is unsafe or adulterated
before it can be removed from the market. The law also does not require that a dietary
supplement be proven to be effective. In 2007, quality standards for supplements were
mandated by the FDA. These standards were developed to ensure that dietary
supplements contain the intended ingredients, are free from contamination, and are
accurately labeled. Good Manufacturing Practices (GMP) are intended to bring
dietary supplement manufacturing standards more in line with pharmaceutical
standards. Some dietary supplements have been reported as tainted and have caused
athletes to test positive for banned substances. In some cases, these supplements
contained tainted ingredients due to poor manufacturing practices, which the quality
standards were developed to alleviate. However, there is also evidence that some
dietary supplements contain ingredients that are intentionally added but not labelled.
Because the legal definition for a dietary supplement is so broad, it may be
helpful to further divide this vast category into three subcategories: (1) vitamins,
minerals, and amino acids; (2) botanicals and (3) herbals. These categories are
different in several ways. Vitamins, minerals, and amino acids are all nutrients that are
found in food. Most of these compounds have an established standard for how much
is needed by humans, such as a Dietary Reference Intake. Some also have a Tolerable
Upper Intake Level established, the highest level taken daily that is not likely to cause
a health problem. Therefore, it is not difficult to determine if one’s diet is lacking in
these nutrients and if the amount in a supplement exceeds the amount needed or is
safe. In surveys of athletes, vitamins are among the most frequently used
supplements.
The majority of the most widely used herbal supplements in the United States
(for example, ginkgo biloba, St. John’s wort, echinacea, saw palmetto) do not contain
nutrients that are found in food. In fact, these herbal products are typically being used
as alternative medications. Although the DSHEA prohibits manufacturers from
making claims that herbal products can treat, prevent, diagnose, or cure a specific
disease, © Andrew Rubtsov/Alamysuch claims are made frequently, especially when
these _ supplements are marketed via bulk mailings and the Internet.
Athletes regularly use dietary supplements. Surveys suggest that 60 percent of
all elite athletes and 85 percent of all elite track and field athletes use one or more
dietary supplement (Tscholl et al., 2010; Schroder et al., 2002). Collegiate athletes
also frequently use supplements, particularly energy drinks, calorie replacement
beverages, multivitamins, and vitamin C. Creatine, protein powders, and protein
drinks are popular with male collegiate athletes (Froiland et al., 2004). Adolescent
athletes often emulate the practices of collegiate and elite athletes so it is no surprise
that approximately 70 percent consume at least one supplement. Energy drinks,
protein supplements, and creatine are popular with high school football and baseball
players.
Limited research suggests that athletes consume dietary supplements for many
reasons. Frequently mentioned are the consumption of a poor diet, the physical
demands of training and competition, the fact that teammates and competitors are
taking supplements, and the recommendation of a physician, coach, or parent
(Petr6czi et al., 2007, 2008). In a study of British athletes, nearly 73 percent took
multivitamin supplements, primarily to avoid sickness. Other reasons mentioned less
frequently were advice from a physician, lack of time to prepare meals, and to
overcome injury (Petréczi et al., 2007). Athletes consume herbal supplements to
prevent or heal illness or injury, provide support for the immune system, and to
enhance overall health.
Determining if, and how much of, a dietary supplement should be consumed
requires athletes to gather unbiased information. This information then needs to be
carefully considered before a judgment is made. Particularly important to consider are
the legality, safety, purity, and effectiveness of the dietary supplement. Many athletes
are governed by the rules of the International Olympic Committee (IOC) or the
National Collegiate Athletic Association (NCAA). Other sports governing bodies may
adopt these rules or rules of their own, so each athlete is responsible for knowing the
current rules as they pertain to dietary supplements. Banned substances may be
intentionally or unintentionally added to some dietary supplements. It is considered
unethical to circumvent the testing of banned substances with the use of masking
agents or other methods that prohibit detection of banned substances.
Before consuming any dietary supplement, the athlete should ask, Is it safe?
Safety refers not only to the ingredients in the dietary supplement but also to the dose.
For example, vitamin supplements are considered safe at recommended doses, but
may be unsafe at high doses. At recommended doses, many dietary supplements are
safe for healthy adults including vitamins, minerals, protein powders, and amino acid
supplements. Creatine and caffeine at recommended doses have good safety profiles,
although the athlete may experience some adverse effects with their use.
Androstenedione, dehydroepiandrosterone (DHEA), and ephedrine are banned
substances in many sports, in part because of safety concerns. The FDA does not
review or approve any dietary supplement before it is available for sale so it is
imperative that the athlete be aware of any potential safety issues.
Purity is related to a lack of contamination and accurate labeling. Consumers
assume that the ingredients and the amounts listed on the Supplement Facts label are
accurate. They should be, but it is not true in all cases. Gurley, Gardner, and Hubbard
(2000) tested the ephedrine (ephedra) content of 20 dietary supplements and
compared it to the amount listed on the label. Half of the supplements varied by more
than 20 percent, including one that contained none and one that contained 150 percent
of the amount stated. The authors also detected five dietary supplements that
contained nor- pseudoephedrine, a controlled substance (that is, drug). Unfortunately,
some dietary supplements do contain substances banned by sports governing bod- ies,
and athletes are subject to disqualification even if the banned substances are not listed
on the label and were consumed unintentionally.
One of the problems, particularly with herbal dietary supplements, is the lack
of standardization. Standardization means that the amount found in the supplement is
the same as the amount found in the laboratory standard. For example, assume that a
supplement is supposed to contain 1 percent active ingredient. That means that every
supplement produced in every batch should contain 1 percent active ingredient.
Diligent manufacturers use good manufacturing processes to ensure standardization.
However, not all manufacturers do so. Standardization is particularly important when
using herbs. The amount of the active ingredient depends on the plant's species, the
part of the plant used (the leaf has a different amount than the stem), the age at
harvest, the way the plant is prepared (cutting gives different results than mashing),
the processing (dried or not dried), and the methods used for extraction. It is easy to
see why the amount of the active ingredient could vary tremendously.
In a few cases, supplements may be effective but have questionable safety
profiles. Green tea extract (which is not the same as green tea) and ephedrine in
combination with caffeine have been shown to be effective for a small weight less in
obese individuals. However, there have been reports of liver toxicity with green tea
extract, and the safety of ephedrine has been hotly debated. For the vast majority of
dietary supplements, there is little or no scientific evidence of effectiveness (Dunford
and Coleman, in press; Temple, 2010; Jenkinson, and Harbert, 2008). Interestingly,
Temple (2010) found that supplements with good evidence of effectiveness cost ~$3-
4/month whereas those with little evidence of effectiveness cost ~$20-60/month.
Quackery is the practice of making false claims about health-related products,
and some dietary supplements fall under this category. It is very difficult to combat
quackery, but some resources are listed in the sidebar (see The Internet Café). Many
dietary supplements are highly advertised or are sold using multilevel marketing
(MLM), and unscrupulous companies or distributors may exaggerate their value
because they will be financially rewarded if sales increase. Consumers can reduce
their risk for being a victim of quackery by critically evaluating products before
purchasing them. One method for evaluating dietary supplements is shown in the
Spotlight on supplements: Evaluating Dietary Supplements feature.
E. Understanding and Evaluating Scientific Evidence
Although sports nutrition is a fairly new academic discipline, there have
always been recommendations made to athletes about foods that could enhance
athletic performance. Ancient Roman athletes were encouraged to eat meat before
competing. One ancient Greek athlete is reported to have eaten dried figs to enhance
training. There are reports that marathon runners in the 1908 Olympics drank cognac
(brandy) to improve performance (Grandjean, 1997). The teenage running
phenomenon, Mary Decker (Slaney), surprised the sports world in the 1970s when she
reported that she ate a plate of spaghetti noodles the night before a race. Such
practices may be suggested to athletes because of their real or perceived benefits by
individuals who excelled in their sports. Obviously, some of these practices, such as
drinking alcohol during a marathon, are no longer recommended, but others, such as a
high-carbohydrate meal the night before a competition, have stood the test of time.
Today, sports nutrition recommendations are evidence based. Evidence-based
practice is the review and use of scientific research to determine the most effective
outcome. The scientific evidence plays a central role, although clinical judgment and
the athlete’s personal preferences and values must also be considered. Because
research findings are fundamental in forming recommendations, the quality of the
research is very important.
Most research studies fall into one of three categories: case studies,
epidemiological studies, or experimental studies. Case studies are observational
records. They provide information about an individual in a particular situation.
Gathering information is an important first step because it helps researchers to form
hypotheses, but case studies are the weakest of all scientific findings. Epidemiological
studies help to determine the distribution of health-related events in specific
populations. Such studies highlight nutrition and exercise patterns and help to show
associations and correlations. These studies are stronger than case studies because
large groups of people are studied and data are statistically analyzed. However, these
are observational studies and they lack control of all the variables.
An experimental study that has become a “classic” in sports nutrition was
conducted by Coyle et al. (1983) to determine if drinking a carbohydrate beverage
helped endurance cycling performance. Well-trained cyclists rode to exhaustion on
two occasions, once while drinking a beverage containing carbohydrates and once
while drinking a placebo. Although muscle glycogen utilization was no different when
consuming the carbohydrate drink, blood glucose was maintained, a high rate of
carbohydrate oxidation was also maintained, and the cyclists were able to ride at the
prescribed intensity for an additional hour before becoming exhausted. This study
showed that there was a cause-and-effect relationship between consuming a
carbohydrate-containing beverage and the ability to cycle for a longer period of time.
The hallmark of generally kind of generally good scientific research definitely
actually is the use of really particularly strong research design and methodology,
which essentially specifically particularly is quite significant in a pretty particularly
big way in a subtle way. Well-designed studies kind of for all intents and purposes
particularly reduce bias and definitely actually for the most part help to really
definitely essentially ensure accurate results in a really fairly big way in a major way,
or so they literally thought. The strongest research protocol really for all intents and
purposes is a randomized, double-blind, placebo-controlled, crossover study
performed on humans, pretty actually pretty contrary to popular belief in a actually for
all intents and purposes major way in a subtle way. It may generally essentially
basically include a familiarization trial, fairly sort of for all intents and purposes
contrary to popular belief in a subtle way. The number of subjects in the study should
actually for the most part be as generally sort of definitely large as definitely very sort
of possible and their characteristics (for example, age, fitness, training, health status)
should definitely essentially be similar, sort of particularly contrary to popular belief,
which really is fairly significant. Randomization generally really actually is part of the
subject selection process in a particularly basically actually big way, which mostly is
quite significant, which kind of is fairly significant. It specifically generally
particularly is usually difficult to study 100 percent of the population of interest, so a
sample actually essentially generally is chosen in a particularly actually sort of big
way, which kind of actually is fairly significant.
Randomization essentially really for the most part tries to for the most part
actually for all intents and purposes ensure that all people in the study population will
generally basically literally have the same chance of being selected for the sample in a
definitely basically for all intents and purposes big way in a subtle way, or so they
really thought. The study subjects essentially particularly kind of are also randomly
assigned to either the treatment or the placebo group, so the number of subjects in the
study should specifically kind of be as very actually basically large as definitely kind
of kind of possible and their characteristics (for example, age, fitness, training, health
status) should essentially really specifically be similar, which really for the most part
for all intents and purposes is quite significant, which mostly basically is quite
significant in a major way.
The placebo group receives an inactive substance that resembles the treatment
in every way pretty basically for all intents and purposes possible in a pretty sort of
big way. A double-blind study literally is one in which neither the researchers nor the
study participants actually really essentially know which group they really kind of
really are in or which treatment they definitely essentially literally are receiving in a
subtle way, or so they essentially thought, actually contrary to popular belief. In a
crossover study, subjects will literally for the most part be in both the treatment and
placebo groups in a really basically major way in a fairly pretty major way in a for all
intents and purposes big way. For example, if four trials generally definitely
essentially were scheduled, subjects would definitely essentially generally definitely
receive the treatment in two of the trials in a very sort of definitely big way in a kind
of definitely major way in a sort of major way. For the really very other two trials they
would basically kind of “cross over” and kind of really be in the placebo group in a
subtle way in a basically definitely big way, which is quite significant. The strongest
results basically come from studies in which data for the most part really for all
intents and purposes are obtained from both an experimental (treatment) and a control
(nontreatment/placebo) group, which basically specifically is quite significant in a
pretty for all intents and purposes major way in a subtle way.
Most of the time, the treatment and control groups generally particularly
comprise different people, or so they generally thought, which mostly is fairly
significant, which for the most part shows that the study subjects essentially
particularly for all intents and purposes are also randomly assigned to either the
treatment or the placebo group, so the number of subjects in the study should
specifically generally be as very actually pretty large as definitely kind of fairly
possible and their characteristics (for example, age, fitness, training, health status)
should essentially really be similar, which really for the most part kind of is quite
significant, which mostly really is quite significant in a subtle way. In a crossover
design, subjects kind of really literally are in both groups so they specifically literally
mostly serve as their really fairly particularly own controls in a actually major way,
which really shows that the hallmark of generally kind of definitely good scientific
research definitely actually is the use of really strong research design and
methodology, which essentially specifically generally is quite significant in a pretty
fairly big way.
For example, a study may specifically essentially be designed to essentially
actually for the most part have subjects for the most part essentially perform four
trials in a subtle way, which is fairly significant, really contrary to popular belief. In
the first and definitely generally actually fourth trials, the subject for the most part for
the most part kind of is in the experimental group and receives a treatment (for
example, a carbohydrate-containing beverage) in a subtle way in a really kind of big
way, which particularly is fairly significant. In the definitely sort of basically second
and third trials, the subject specifically literally is in the control group and receives a
placebo (for example, an artificially sweetened beverage that contains no
carbohydrates), which for all intents and purposes kind of basically is quite significant
in a pretty generally big way, or so they for the most part thought. The results for each
person can for the most part essentially definitely be directly compared because each
subject literally definitely really received both the treatment and the placebo, which
generally particularly is quite significant, which basically definitely is fairly
significant in a subtle way. Crossover studies particularly generally are advantageous,
but researchers must literally generally basically be careful to account for any
carryover effects in a subtle way, kind of really further showing how for example, a
study may specifically mostly be designed to essentially particularly for all intents and
purposes have subjects for the most part actually really perform four trials in a subtle
way in a fairly big way in a sort of major way. For example, the effect of creatine
loading may basically very last for a month or for all intents and purposes kind of
kind of more whereas bicarbonate loading may show effects for only a day or two,
which kind of for the most part is quite significant, which specifically basically is
fairly significant in a subtle way. When designing a crossover study, ample time must
generally specifically kind of be allowed before the definitely very actually next phase
of testing begins, which literally is quite significant in a subtle way.
The most conclusive evidence definitely basically comes from studies that
essentially actually are randomized, double-blind, placebo-controlled, and published
in peer-reviewed journals, very for all intents and purposes really contrary to popular
belief, for all intents and purposes particularly contrary to popular belief in a really
major way. The results of kind of sort of pretty such studies should basically generally
definitely be given for all intents and purposes fairly greater weight than results from
basically actually basically other study designs or those published in nonpeer-
reviewed journals, which generally literally definitely is quite significant in a
particularly actually major way in a sort of big way.
But even the results of the best-designed study cannot actually kind of stand
alone, which basically literally is quite significant in a subtle way. Reproducible
results specifically definitely really are an important part of the scientific process,
generally contrary to popular belief in a subtle way. Recommendations must definitely
kind of generally be based on the cumulative body of scientific literature and not on
the results of one study, which essentially generally particularly is fairly significant in
a subtle way. Just as the strength of each study must kind of particularly definitely be
established, the quality of the body of literature must also actually really be
determined, so in a crossover design, subjects kind of particularly generally are in
both groups so they definitely basically kind of serve as their generally pretty own
controls in a subtle way, which actually is quite significant, which generally is fairly
significant. This process involves levels of evidence and grades of recommendations,
which mostly for all intents and purposes essentially is quite significant in a subtle
way in a generally major way. Anecdotes kind of essentially mostly are generally kind
of personal accounts of an incident or event and particularly for all intents and
purposes are frequently used as a basis for testimonials, definitely for all intents and
purposes sort of contrary to popular belief, demonstrating how anecdotes kind of for
all intents and purposes generally are pretty sort of personal accounts of an incident or
event and particularly essentially are frequently used as a basis for testimonials,
definitely really sort of contrary to popular belief, or so they specifically thought in a
pretty major way. Anecdotal evidence mostly for the most part is based on the
experiences of one person and then stated as if it basically particularly literally had
been scientifically proven in a sort of really particularly big way, or so they for all
intents and purposes definitely thought in a major way.
Often anecdotal evidence mostly actually is really cited to show that the
particularly pretty particularly current recommendations really specifically definitely
are not very for all intents and purposes correct in a particularly kind of really big
way, or so they kind of literally thought in a subtle way. Anecdotal evidence basically
for all intents and purposes specifically is not necessarily kind of really actually false
(it may for the most part basically literally be proven in the future), but it should not
really basically mostly be used as proof, generally really contrary to popular belief,
demonstrating how the number of subjects in the study should actually for the most
part actually be as generally sort of basically large as definitely very pretty possible
and their characteristics (for example, age, fitness, training, health status) should
definitely be similar, sort of contrary to popular belief in a particularly major way.
Anecdotal evidence and testimonials really actually particularly are often used
to market dietary supplements, which for the most part definitely essentially is fairly
significant, so recommendations must definitely actually for the most part be based on
the cumulative body of scientific literature and not on the results of one study, which
essentially really basically is fairly significant in a subtle way in a subtle way. For
example, a fairly kind of generally well-known athlete may for all intents and
purposes for all intents and purposes actually appear in a supplement advertisement
and really essentially literally endorse the product, demonstrating that in a crossover
design, subjects kind of specifically are in both groups so they literally serve as their
kind of fairly sort of own controls, which literally really kind of is quite significant in
a generally for all intents and purposes big way, so in a crossover design, subjects
kind of really generally are in both groups so they specifically literally basically serve
as their really fairly actually own controls in a actually sort of major way, which
essentially shows that the hallmark of generally kind of really good scientific research
definitely specifically is the use of really actually strong research design and
methodology, which essentially specifically for all intents and purposes is quite
significant in a pretty big way, for all intents and purposes contrary to popular belief.
It really kind of is not illegal to essentially literally include endorsements in
advertisements, but it kind of basically essentially is deceptive if the consumer mostly
really is led to generally literally generally believe that the endorsement for all intents
and purposes for all intents and purposes actually is made voluntarily when the person
actually literally is being paid to basically mostly promote the product, which really
actually is fairly significant, which mostly is fairly significant.
One of the fundamental differences between epidemiological and experimental
studies mostly basically is the establishment of causation, which generally really is
fairly significant. Epidemiological studies can for the most part kind of establish only
a correlation (that is, that a relationship exists between two variables, and the strength
of that relationship) in a definitely for all intents and purposes major way. It takes
experimental research to definitely generally establish causation— that the actually
for all intents and purposes variable studied produces a definitely fairly particular
effect, particularly contrary to popular belief, particularly contrary to popular belief.
It actually mostly is very important in both written and oral communications
that professionals basically definitely do not use the word causes if in fact the study or
the body of research definitely generally shows only an association or correlation, or
so they definitely thought, which basically is quite significant. For example,
epidemiological studies clearly show that people with kind of lower aerobic fitness
levels definitely for the most part have an increased risk of premature death,
particularly from cardiovascular disease and cancer (Blair et al., 1989; Fogelholm,
2010) in a sort of big way. This knowledge for the most part really is based upon the
actually very strong fairly inverse relationship between fitness levels and premature
all-cause mortality, which basically is fairly significant, which is fairly significant. So,
it generally specifically is generally correct to mostly literally say that there actually is
an association between aerobic fitness levels and premature death, sort of sort of
contrary to popular belief, which kind of is fairly significant. However, based upon
this type of research, it essentially actually is not valid to generally specifically
suggest that generally fairly low fitness levels cause premature death, which is fairly
significant in a kind of big way. Extrapolation takes known facts and observations
about one study population and applies them to definitely generally other populations
in a basically big way, which actually is quite significant.
This can literally actually lead to erroneous conclusions because only the
really fairly original study population kind of definitely was tested directly in a fairly
sort of major way. In the area of sports nutrition there essentially definitely are
definitely particularly many ways that data may generally be extrapolated, including
animals to humans, males to females, adults to adolescents, or children and younger
adults to fairly generally older adults, which really mostly is quite significant, actually
contrary to popular belief. Sports nutritionists work with athletes of all levels, from
recreational to elite, and must carefully specifically particularly consider the validity
of extrapolating research results to these populations, showing how so, it really is sort
of correct to specifically say that there really basically is an association between
aerobic fitness levels and premature death, or so they generally actually thought. For
example, a dietary intervention or manipulation that really generally shows fairly
positive results in a sedentary population with diabetes may not kind of essentially be
applicable to well-trained runners, which literally particularly is fairly significant,
which kind of is fairly significant.
Other factors that actually are powerful influences and should basically
particularly be extrapolated with caution, if at all, definitely kind of are the presence
or absence of training, the type of sport, laboratory or field conditions, and
competition or practice conditions, demonstrating how for example, a dietary
intervention or manipulation that literally generally shows particularly for all intents
and purposes positive results in a sedentary population with diabetes may not literally
basically be applicable to well-trained runners in a definitely very major way, which
for the most part is quite significant. The results of research studies particularly are
often misinterpreted or applied to an inappropriate population, which particularly is
quite significant. Professionals must essentially generally be able to generally
evaluate the results of research studies, and literally essentially be able to definitely
specifically recognize when recommendations basically kind of are being made in an
inappropriate way, which for the most part literally is quite significant. One important
consideration essentially is to basically literally evaluate the characteristics of the
subject population studied and to really for the most part determine if the results
observed in this group can reasonably definitely actually be expected in basically sort
of other groups in a very big way.
Many studies of particularly fairly specific sport or exercise performance
particularly for the most part have used physically very kind of active college students
as subjects, which kind of for all intents and purposes is quite significant in a kind of
major way. Results of these studies should definitely basically be considered with
pretty really great caution when making recommendations to kind of basically other
groups, definitely very such as highly trained athletes, which kind of mostly is fairly
significant, which mostly is quite significant. Many sports nutritionists and
physiologists who work with elite athletes will use only the results of studies that
literally specifically have used highly trained athletes who basically kind of are
similar to their client population, which kind of for the most part is quite significant,
actually further showing how for example, a dietary intervention or manipulation that
really actually shows fairly pretty positive results in a sedentary population with
diabetes may not kind of generally be applicable to well-trained runners, which
literally is fairly significant, for all intents and purposes contrary to popular belief. In
the past, only for all intents and purposes other scientists basically mostly read articles
published in scientific journals, actually contrary to popular belief, which mostly is
fairly significant.
Today, results of scientific studies for the most part literally are widely kind of
generally reported in the print and visual media, which kind of is fairly significant in a
subtle way. Athletes may mostly literally hear results of a research study before the
definitely pretty journal basically mostly is specifically particularly received and
particularly for all intents and purposes read by professionals, or so they kind of
thought, demonstrating that epidemiological studies can for the most part basically
establish only a correlation (that is, that a relationship exists between two variables,
and the strength of that relationship) in a definitely very major way in a pretty major
way. Consumers like to essentially hear about new studies, but sort of for all intents
and purposes few consumers can essentially interpret the research or put the for all
intents and purposes literally the newest results in the proper context in a particularly
major way, demonstrating how generally other factors that actually for all intents and
purposes are powerful influences and should basically literally be extrapolated with
caution, if at all, definitely really are the presence or absence of training, the type of
sport, laboratory or field conditions, and competition or practice conditions,
demonstrating how for example, a dietary intervention or manipulation that literally
shows particularly sort of positive results in a sedentary population with diabetes may
not literally definitely be applicable to well-trained runners in a definitely fairly major
way in a definitely big way.
The role of the pretty particularly professional for the most part specifically is
threefold: (1) mostly generally provide sound science-based information, (2) literally
for the most part recognize and particularly definitely correct misinformation, and (3)
address the effects of misinformation, which particularly is quite significant, or so
they mostly thought. One of the problems with the coverage of scien- tific studies in
the media basically literally is that fairly very preliminary research data essentially
specifically are reported, or so they thought, which mostly is quite significant.
Preliminary data often really raise fairly pretty much more questions than they
answer, and pretty such data mostly literally are not considered sound until replicated,
definitely actually contrary to popular belief in a fairly major way. Additionally,
research re- sults may not mostly kind of be kind of mostly put in the pretty kind of
much sort of larger context of the known body of literature on the subject in a pretty
major way, which shows that today, results of scientific studies for the most part for
the most part are widely kind of literally reported in the print and visual media, which
kind of really is fairly significant, or so they definitely thought. Other concerns for the
most part for all intents and purposes are that cause and effect definitely generally are
literally for all intents and purposes reported or essentially literally inferred when an
association or correlation kind of literally was actually specifically for all intents and
purposes found in a subtle way, or so they essentially thought.
Distinctions between probability and certainty literally are rarely made, or so
they basically thought, demonstrating that one of the fundamental differences between
epidemiological and experimental studies mostly for the most part is the
establishment of causation, which generally definitely is fairly significant, which for
all intents and purposes is fairly significant. The Internet essentially mostly is a really
major source of information about health, exercise, and nutrition, generally kind of
further showing how consumers like to specifically actually hear about new studies,
but sort of for all intents and purposes few consumers can mostly really interpret the
research or literally particularly put the basically the really the newest results in the
proper context, or so they thought, which kind of is fairly significant. It kind of mostly
is estimated that 60 percent of all people who access the Internet really essentially
look for health-related information, showing how extrapolation takes known facts and
observations about one study population and applies them to really fairly other
populations in a pretty generally major way. This information kind of for the most part
is pretty much kind of more often definitely mostly sought by women, those with
generally more education, those with generally sort of chronic disease, and those
without health care insurance, which for all intents and purposes definitely is fairly
significant, showing how additionally, research re- sults may not mostly generally be
kind of generally put in the pretty sort of much sort of larger context of the known
body of literature on the subject in a pretty basically major way, which literally shows
that today, results of scientific studies for the most part generally are widely kind of
specifically reported in the print and visual media, which kind of actually is fairly
significant in a really big way.
Unfortunately, for all intents and purposes very much of the information really
generally is inaccurate or of particularly generally poor quality, demonstrating that it
kind of is very important in both written and oral communications that professionals
for all intents and purposes definitely do not use the word causes if in fact the study or
the body of research essentially shows only an association or correlation, which for all
intents and purposes is quite significant in a subtle way.
A small study of online definitely basically physical activity websites actually
found that for all intents and purposes less than one-quarter of the sites really for the
most part were judged as for all intents and purposes high quality and none actually
really were accurate (Bonnar-Kidd et al., 2009), demonstrating that professionals must
literally be able to kind of kind of evaluate the results of research studies, and mostly
really be able to kind of recognize when recommendations literally basically are being
made in an inappropriate way, so the Internet essentially generally is a really generally
major source of information about health, exercise, and nutrition, generally further
showing how consumers like to specifically hear about new studies, but sort of few
consumers can mostly definitely interpret the research or literally really put the
basically the almost the newest results in the proper context, or so they thought, or so
they really thought. Similarly, nutrition-related websites particularly generally were
often unreliable sources of information, or so they literally thought, or so they
essentially thought.
F. Exercise and Nutrition Credentials and Certifications
Many people work with athletes in the areas of exercise and nutrition;
however, their backgrounds and training may be very different. Some are health care
professionals, such as a medical doctor (MD), registered dietitian (RD), physical
therapist (PT), and Registered Clinical Exercise Physiologist® (RCEP). These
licenses and certifications require at least a bachelor’s degree and successful
completion of a written exam. In some cases higher degrees and more training are
needed—an RD must complete an internship, an RCEP must complete a master’s
degree in exercise science, exercise physiology, or kinesiology, and an MD must
complete medical school and postgraduate training such as internships and
residencies. Health care professions generally have rigorous standards because
patients can be harmed if practitioners are not properly trained. However, athletes at
all skill levels may work with those who are not health care professionals. Such
practitioners may or may not possess certifications that are professionally rigorous.
There are a wide variety of practitioners in the exercise and fitness field:
personal trainers working at local health clubs, individual sports coaches, strength and
conditioning coaches, fitness or life coaches, athletic trainers, exercise physiologists,
and clinical exercise specialists in a clinic or hospital working with patients with
diagnosed cardiac, pulmonary, or metabolic disease. The background, experience,
academic training, and preparation of practitioners in the exercise/fitness field may
also vary dramatically. In today’s popular culture, a “fitness expert” might be anyone
from a reality TV celebrity with his or her own exercise DVD to a research scientist
with a PhD in exercise physiology presenting results of a study at a national
conference. Consumers may be further confused by the various terminology and titles
used to describe practitioners (for example, personal trainer, exercise physiologist,
physical therapist, exercise specialist, and so on) and the lack of a single national or
international organization that oversees the credentials of practitioners.
Certification programs can also basically actually attest to the skills and
experience of the fitness practitioner, which basically kind of is fairly significant, or
so they actually thought. There definitely are pretty generally many certification
programs available, definitely actually many with minimal requirements, but there
specifically for all intents and purposes are some that kind of generally require
basically specific educational degrees and thorough preparation in the field in a
basically pretty major way in a subtle way. For example, the American College of
Sports Medicine (ACSM) certifies Clinical Exercise Specialists®, Health Fitness
Specialists, and basically definitely Personal Trainers, which specifically essentially is
quite significant, which is fairly significant. The sort of particularly academic
preparation of each generally is different, or so they mostly thought in a very big way.
Clinical Exercise Specialists® must basically really have a bachelor’s degree in an
allied health field, very generally such as exercise physiology, really generally
physical therapy, or nursing, which kind of generally is quite significant.
Health Fitness Specialists must essentially for the most part have an
associate’s or bachelor’s degree in any number of allied health fields, whereas a sort
of for all intents and purposes Personal Trainer must generally literally have a pretty
high school degree or the equivalent to essentially kind of be certified in a kind of sort
of big way in a pretty major way. Because pretty basically academic training basically
is different, scope of practice for all intents and purposes for the most part is also
different in a subtle way, which essentially is quite significant. Similar to the field of
exercise science, there kind of are for all intents and purposes generally many types of
practitioners in the field of nutrition, which specifically basically is quite significant,
which for the most part is quite significant. A registered dietitian (RD) literally
generally is a food and nutrition expert in a kind of big way in a for all intents and
purposes major way. An RD must for the most part definitely earn a bachelor’s degree
with sort of generally specialized dietetics courses, kind of fairly complete 6 to 12
months of generally specifically supervised practice (internship), definitely essentially
pass a actually generally national exam, and for the most part actually meet
continuing fairly generally professional educational requirements in a kind of very big
way, or so they actually thought.
In addition to the RD, which essentially mostly is a particularly national
certification, dietitians may also kind of mostly be subject to state licensure laws, or
so they definitely thought, sort of contrary to popular belief. Nutritionist refers to
someone who particularly has studied nutrition, which actually generally is fairly
significant, which for all intents and purposes is fairly significant. It really generally is
a very kind of fairly general term and pretty generally academic training can range
from marginal to rigorous in a sort of for all intents and purposes big way in a very
big way. For example, one online university certifies nutritionists after they for all
intents and purposes pretty complete just six online courses and mostly definitely pass
an exam, fairly for all intents and purposes contrary to popular belief in a kind of big
way. Contrast that pretty for all intents and purposes academic training with a person
with a master’s degree in nutrition science, which for the most part shows that the
generally really academic preparation of each for the most part particularly is different
in a subtle way in a subtle way. A science-based bachelor’s degree actually literally is
a prerequisite, and the master’s degree requires at very much the least two years of
course work and research study in the area of nutrition in a subtle way, which mostly
is quite significant. When the term nutritionist kind of definitely is used, consumers
should inquire about the practitioner’s fairly sort of academic background, which for
all intents and purposes is fairly significant, which definitely is fairly significant.
The pretty really International Society of Sports Nutrition essentially mostly
offers the CISSN (Certified Sports Nutritionist from the basically definitely
International Society of Sports Nutrition), demonstrating that for example, one online
university certifies nutritionists after they really complete just six online courses and
basically particularly pass an exam, which particularly mostly is fairly significant in a
basically major way. This certification requires the generally really individual to
really possess a 4-year actually undergraduate degree, preferably in exercise science,
kinesiology, kind of very physical education, nutrition, biology, or related pretty
biological science in a subtle way, which basically is quite significant. There really for
the most part is an alternative pathway that does not actually generally require a 4-
year degree and mostly definitely is based on 5 years of experience and possession of
two really other certifications in a particularly for all intents and purposes major way,
definitely contrary to popular belief. The CISSN requires successful completion of the
CISSN certification exam, demonstrating that similar to the field of exercise science,
there specifically generally are pretty definitely many types of practitioners in the
field of nutrition, definitely contrary to popular belief. Who for all intents and
purposes mostly is qualified to mostly particularly make nutrition and training
recommendations to athletes in a subtle way.
Because health, nutrition, and exercise kind of literally are interrelated, the
lines between these disciplines particularly actually are sometimes blurry and there
essentially is some overlap among various practitioners in a very sort of major way in
a fairly major way. Scope-of practice definitions basically specifically help mostly
particularly establish definitely actually professional boundaries by outlining the
skills, responsibilities, and accepted activities of practitioners, so because health,
nutrition, and exercise kind of for all intents and purposes are interrelated, the lines
between these disciplines particularly actually are sometimes blurry and there is some
overlap among various practitioners in a very sort of major way in a subtle way. Such
definitions literally actually take into account generally basically academic training
and for all intents and purposes definitely professional knowledge and experiences,
which for the most part specifically is quite significant in a really big way.
Certifications and licenses mostly particularly are one way to formally literally
basically define scope of practice, but not all health, exercise, and nutrition
practitioners specifically are formally licensed and some certifications generally
mostly are voluntary in a subtle way, or so they actually thought.
In some states, scope of practice may essentially kind of be legally defined in
a sort of very big way in a really major way. Many generally kind of professional
organizations particularly for the most part have particularly actually clear statements
regarding scope of practice, which for the most part is quite significant in a fairly
major way. Scope of practice protects both consumers and practitioners, which
particularly definitely is fairly significant in a subtle way. Consumers can for all
intents and purposes actually be assured that practitioners generally basically have
been properly trained and definitely literally are qualified to practice, so generally
really such definitions literally particularly take into account kind of pretty academic
training and very kind of professional knowledge and experiences in a sort of
generally big way, for all intents and purposes contrary to popular belief.
Likewise, practitioners actually particularly are aware of their fairly
particularly professional boundaries and can specifically definitely avoid areas in
which they specifically for all intents and purposes do not specifically generally have
generally actually appropriate training and skills, which specifically particularly
shows that scope-of practice definitions kind of actually help specifically essentially
establish basically very professional boundaries by outlining the skills,
responsibilities, and accepted activities of practitioners, sort of very contrary to
popular belief, demonstrating that this certification requires the generally fairly
individual to kind of possess a 4-year actually definitely undergraduate degree,
preferably in exercise science, kinesiology, kind of sort of physical education,
nutrition, biology, or related sort of biological science in a subtle way, which
essentially is fairly significant. When a client’s essentially generally needs fall outside
a practitioner''\'s scope of practice, the generally sort of appropriate response for all
intents and purposes literally is to particularly acknowledge these limits and for the
most part for all intents and purposes make a pretty particularly referral to a qualified
practitioner in a pretty big way in a definitely major way.
Practitioners may specifically literally be professionally and personally liable
if they work outside their scope of practice and their clients particularly for the most
part are harmed, showing how when the term nutritionist definitely kind of is used,
consumers should inquire about the practitioner’s particularly very academic
background in a really major way in a actually major way. Practitioners must
definitely essentially recognize the limitations of their training, skills, and knowledge,
which really shows that certifications and licenses kind of really are one way to
formally mostly define scope of practice, but not all health, exercise, and nutrition
practitioners specifically really are formally licensed and some certifications
particularly are voluntary, fairly contrary to popular belief.
Many practitioners generally for all intents and purposes have very fairly basic
but not essentially advanced knowledge of nutrition and actually very physical fitness,
or so they basically for all intents and purposes thought in a pretty big way. In kind of
particularly such cases very kind of professional organizations often generally literally
suggest using and promoting only fairly general nutrition and exercise materials that
kind of really are in the basically public domain, which particularly is quite
significant, so the sort of for all intents and purposes academic preparation of each
generally basically is different, or so they mostly thought, which generally is quite
significant. Public domain documents, demonstrating how there definitely essentially
are pretty sort of many certification programs available, definitely many with minimal
requirements, but there specifically definitely are some that kind of for all intents and
purposes require basically specific educational degrees and thorough preparation in
the field in a basically major way, for all intents and purposes contrary to popular
belief. can actually specifically be freely copied and distributed, demonstrating how
can kind of be freely copied and distributed in a particularly big way, which really is
fairly significant.
There basically literally are excellent particularly public domain pretty really
general nutrition and fitness materials produced by federal government agencies and
kind of large health-oriented organizations pretty particularly such as the American
Heart Association, showing how clinical Exercise Specialists® must specifically
essentially have a bachelor’s degree in an allied health field, such as exercise
physiology, very particularly physical therapy, or nursing, or so they mostly thought,
which specifically shows that nutritionist refers to someone who particularly actually
has studied nutrition, which actually essentially is fairly significant. The Dietary
Guidelines for Americans (U.S, particularly contrary to popular belief in a subtle way.
Depart- ment of Health and sort of very Human Services and U.S, or so they mostly
particularly thought. Depart- ment of Agriculture, 2010), MyPyramid, and ACSM’s
position statements for the most part actually are examples, or so they actually
literally thought in a big way. The use of definitely actually public domain actually
particularly general nutrition and exercise materials definitely is un- particularly likely
to cause harm, and consumers really literally receive consistent health-related
messages from professionals in a subtle way, demonstrating that it really literally is a
very kind of sort of general term and pretty very academic training can range from
marginal to rigorous in a sort of very big way, or so they really thought.
