HUMAN PHYSIO

Abstract:

Do people who exercise daily have a faster heart rate recovery when doing cardio compared to people who do not exercise daily? The focus of this report is to determine the effects of exercise on one’s resting heart rate and heart rate recovery time, one minute after the cessation of exercise. We analyzed 26 individuals, 13 who exercise regularly (three to five times per week), and 12 who do not exercise regularly to compare resting heart rate, and heart rate recovery after a 20-minute brisk walk. After studying these 26 individuals data, results

Is there a correlation???

Introduction:

Regular exercise, three to five times per week, has multiple benefits which include improving strength, increasing energy levels, reducing the risk of disease, and improving sleep quality, (1). Heart rate recovery (HRR) is defined as “the decrease of heart rate one minute after cessation of exercise,” (2). Exercise on a regular basis can also help with heart rate recovery time compared to people who do not exercise, who will have a harder time reaching their resting heart rate. Heart rate is controlled by the autonomic nervous system. While we exercise, the sympathetic system works to increase our heart rate and force. When exercise is over, the parasympathetic system works to decrease our heart rate. Normal resting heart rate is produced by the intrinsic rate of the SA node and parasympathetic stimulation via the vagus nerve. During cardio exercise, as your pace increases, heart rate does as well. Fitness level plays a role in how long the heart rate takes to return to rest. We hypothesize that people who exercise regularly (three to five times per week) have a faster heart rate recovery when doing cardio compared to people who do not exercise regularly. Some previous studies have been done which observe heart rate recovery among those who exercise.

In one study by Kevin S. Heffernan and colleagues, they focused on analyzing heart rate recovery (HRR) in relation to strength training (3). They put 14 sedentary young men (average age of 25) on a six week long, three times a week resistance training program. To take this study further, they put these men on a 4-week detraining period where no exercise occurred to see HRR would be affected if they went back to being sedentary. They calculated HRR as their maximum heart rate during the text subtracted by their heart rate one minute after completing the exercise. Over time, they found that heart rate recovery is increased when participants are regularly exercising as their HRR results after 6 weeks of strength training were significantly different compared to their starting HRR.

In another study, Anne Kerstin Reimers and her colleagues focused on the resting heart rates of individuals who perform different types of exercise and how it may affect mortality rates (4). They looked at 215 samples which include various forms of exercise such as strength training, combined endurance, and sports. They conclude that exercise, specifically endurance sports and yoga, decreases resting heart rate, may contribute to a reduction in mortality rates. Lastly, we looked at a study by Michael Jolly and colleagues which aimed to see how the impact of exercise on heart rate recovery plays a role in mortality rates (5). 1070 patients were analyzed before and after undergoing a phase II cardiac rehabilitation (CR) program, which is an outpatient program designed to help individuals improve heart health by following an exercise routine prescribed by a physician. 221 of 544 patients who started out with an abnormal heart rate, achieved a normal heart rate after CR. The individuals from the study were followed back up an average time of 8.1 years later. 68 patients died (13%) of the 526 patients with a normal heart rate recovery compared to 129 of the 544 patients (24%) who had an abnormal heart rate recovery. There was a strong correlation between having an abnormal heart rate recovery and mortality rates in their study.

These studies are relevant to our hypothesis because they all focus on heart rate recovery, exercise or lack of exercise, and potential effects exercise may have on heart rate. The purpose of our study is to see whether or not exercise plays a role in heart rate recovery, as it is typically an indicator of good health. Heart rate data were collected from 26 individuals and will be analyzed to test our hypothesis.

Methods:

Results: the hypothesis is matching up the tada which our collected

Discussion:

Article summary:Reference #1: Heart rate recovery and heart rate complexity following resistance exercise training and detraining in young men

Summary: One study by Kevin S. Heffernan and colleagues focused on analyzing heart rate recovery (HRR) time in relation to strength training. They put 14 sedentary young men (average age of 25) on a six week long, three times a week resistance training program. To take this study further, they put these men on a 4 week detraining period where no exercise occurred to see HRR would be affected if they went back to being sedentary.They calculated HRR as their maximum heart rate during the text subtracted by their heart rate one minute after completing the exercise. Their starting HRR was 27.3±1.0 bpm, HRR after 6 weeks of strength training was 30.7±1.0bpm, and after 4 weeks of detraining their HRR was 29.5±1.0 bpm. Overtime, they found that heart rate recovery is increased when participants are regularly exercising as their HRR results after 6 weeks of strength training were significantly different compared to their starting HRR. (1)

Works Cited