Aerobics Trainer Exercise Physiology & Conditioning

Question 1

What is the primary energy system used during high-intensity, short-duration exercise?

Accepted Answer

ATP-PC system

Answer

Aerobic glycolysis

Answer

Lactic acid system

Answer

Oxidative system

Question 2

Which muscle fiber type is most associated with endurance-based activities?

Accepted Answer

Type I (slow-twitch) fibers

Answer

Type IIa fibers

Answer

Type IIx fibers

Answer

Fast-twitch fibers

Question 3

What is the recommended rest period for strength training exercises targeting maximal strength?

Accepted Answer

2-3 minutes

Answer

30 seconds

Answer

1 minute

Answer

5 minutes

Question 4

Which of the following adaptations occurs with regular aerobic training?

Accepted Answer

Increased stroke volume

Answer

Decreased lung capacity

Answer

Reduced mitochondrial density

Answer

Lower blood volume

Question 5

What is the primary function of lactic acid during high-intensity exercise?

Accepted Answer

Temporary energy source

Answer

Causes permanent muscle fatigue

Answer

Prevents oxygen uptake

Answer

Eliminates muscle soreness

Question 6

What is the primary purpose of a dynamic warm-up before exercise?

Accepted Answer

Increase blood flow and prepare muscles

Answer

Maximize calorie burn

Answer

Improve flexibility permanently

Answer

Decrease metabolic rate