ACSM-CPT Exercise Physiology

Question 1

What is the primary energy system used during high-intensity exercise lasting 30-90 seconds?

Accepted Answer

Anaerobic glycolysis (lactic acid system)

Answer

Phosphagen system (ATP-PC)

Answer

Oxidative phosphorylation (aerobic system)

Answer

Beta-oxidation of fatty acids

Question 2

What physiological adaptation occurs in skeletal muscle with chronic resistance training?

Accepted Answer

Muscle fiber hypertrophy through increased myofibrillar protein synthesis

Answer

Decreased capillary density

Answer

Reduction in motor unit recruitment

Answer

Loss of type II muscle fibers

Question 3

What is VO2max and why is it important for fitness assessment?

Accepted Answer

The maximum rate of oxygen consumption during exercise, reflecting cardiorespiratory fitness

Answer

The maximum volume of air the lungs can hold

Answer

The maximum heart rate achieved during exercise

Answer

The maximum amount of carbon dioxide exhaled

Question 4

What is the FITT principle in exercise prescription?

Accepted Answer

Frequency, Intensity, Time, and Type of exercise

Answer

Flexibility, Interval, Training, and Technique

Answer

Force, Impact, Threshold, and Timing

Answer

Fitness, Improvement, Testing, and Tracking

Question 5

What happens to blood pressure during resistance exercise?

Accepted Answer

Both systolic and diastolic pressure increase significantly

Answer

Blood pressure decreases during the effort

Answer

Only diastolic pressure changes

Answer

Blood pressure remains unchanged during exercise

Question 6

What is the sliding filament theory?

Accepted Answer

The mechanism by which actin and myosin filaments slide past each other to produce muscle contraction

Answer

The theory that muscles grow by adding new fibers

Answer

The principle of muscle fiber type conversion during training

Answer

The mechanism of nerve impulse transmission to muscles