Musculoskeletal: Muscles

Question 0

Anaerobic Glycolysis

Answer 0

High intensity, short duration. Up to 30-40 seconds. Glycogen –> glucose then glycolysis, forms ATP. 50% slower. No O2 dependency, uses only carbs, small ATP amounts.

Question 1

ATP-PC

Answer 1

High intensity, short duration. Up to 15 seconds. Instantaneous, most rapid ATP source. No series of reactions, no O2 dependency, stored in contractile muscle.

Question 2

Aerobic Metabolism

Answer 2

Low intensity, long duration. Yields the most ATP. Oxidation of food. Makes energy as long as nutrients are present.

Question 3

Type I Fibers

Answer 3

Aerobic
Red
Tonic
Slow Twitch
Slow-Oxidative

Question 4

Type II Fibers

Answer 4

Anaerobic
White
Phasic
Fast Twitch
Fast-Glycolytic

Question 5

Type I Fibers

Answer 5

Low fatigability
High capillary density
High myoglobin
Smaller fibers
Extensive blood supply
Large amount of mitochondria
Marathon, swimming

Question 6

Type II Fibers

Answer 6

High fatigability
Low capillary density
Low myoglobin content
Larger fibers
Less blood supply
Fewer mitochondria
High jump, sprinting

Question 7

DeLorme Exercise Protocol

Answer 7

1. 10 x 50% of 10RM
2. 10 x 75% of 10RM
3. 10 x 100% of 10RM

Question 8

Oxford Exercise Protocol

Answer 8

1. 10 x 100% of 10RM
2. 10 x 75% of 10RM
3. 10 x 50% of 10RM

Question 9

Skinfold

Answer 9

7-Site and 3-site formulas. Taken on right side. Retest if difference > 1-2mm. Pinch perpendicular 1cm away. Wait 1-2sec. Accuracy = +/-3%. Triceps, subscapular, abdominal, midaxillary, biceps, chest, medial calf, suprailiac, thigh

Question 10

BMI

Answer 10

Males:12-18% body fat
Females: 18-23% body fat

Question 10

Plethysmography

Answer 10

Measures air displaced in specialized closed chamber to calculate body composition.

Question 12

Bioelectrical Impedence Analysis (BIA)

Answer 12

Resistance to electrical current inverse to composition of water. Height2/resistance. Accuracy +/-3%.
No food/drink 4hrs, no vigorous activity 12hrs, Urinate 30min, no alcohol 48hrs, no excessive water intake.