Lab Q/A

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LaboratoryAssignmentForceandVelocity2.docx

Laboratory Activity: Force and Velocity

(Mine)

Subject: Colleen Date: 09/30/2021

Tester: Nisha

Sex: M/F (highlight one) Age:21 y

Height:___________cm _______in.______m

Weight:_________kg _______lb

Resting Blood Pressure:

Trial

Systolic

Diastolic

1

120

82

2

120

78

Average

* Use the average for blood pressure classification

Blood pressure classification _______________

Fiber Type Composition

Repetition 1

Repetition 2

Repetition 3

Repetition 4

Repetition 5

Repetition 48

Repetition 49

Repetition 50

83.8

80.1

72.8

64.4

67.5

39.3

33.5

33.5

Fiber Type Composition

Max Torque

Final Torque

%Fatigue Index

%Fast-twitch

% Slow-twitch

78.9

35.4

55.13

54.82

44.87

Hamstring:Quadriceps (H:Q) Ratio

Peak Flexion Torque (N· m)

Peak Extension Torque (N· m)

H:Q ratio

68.8

30.5

Push-Up Test

Completed Push-ups

23

Classification (Table 12.9)

Very good

1RM Testing

Load (kg)

Warm-up set #1

40-60% estimated 1RM, 5-10 reps

16kg

Warm-up set #2

60-80% estimated 1RM, 3-5 reps

19kg

1RM Attempt 1

20kg

1RM Attempt 2

20kg

1RM Attempt 3

20kg

1RM Attempt 4

20kg

1RM Attempt 5

20kg

1RM

20kg

*Use 65% 1RM

Linear Position Transducer

*Complete as many repetitions as possible. You may need to insert additional rows

Velocity (m/s)

Average

Peak

Repetition 1

0.37

0.65

Repetition 2

0.29

.39

Repetition 3

.27

.51

Repetition 4

.30

.49

Repetition 5

.33

.52

Repetition 6

.23

.43

Repetition 7

.23

.34

Repetition 8

.51

.82

Repetition 9

Repetition 10

Average

Muscle Thickness

Upper Arm

Baseline (Pre) (cm)

Immediately Post (cm)

15 min Post (cm)

60%

2.16

2.74

2.69

70%

2.84

3.01

2.78

Questions: Please write your answers underneath the questions in sentence/paragraph form (no bullet points). These answers should be in YOUR OWN words. Do not copy the answers from other laboratory students.

1. Why is it important to test an individual’s musculoskeletal fitness and what happens to the musculoskeletal system as you age? Why might it be important to look at power?

2. Explain the relationship between force and speed of movement during a muscular contraction.

3. What is your partner’s fiber type composition and explain the differences between the different fiber types within skeletal muscle. Compare you and your partner’s fiber type composition and explain any differences.

4. What happens to the velocity throughout the repetitions (both average and peak) during the linear transducer test? What might be contributing to the decline in velocity (think physiologically)? How does your data compare to your partners. Explain any differences.

5. Compare your partner’s pre and post muscle thickness. What is happening here and what might this indicate? What is happening to muscle thickness 15 minutes post exercise?