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

Anaerobic glycolysis becomes the dominant energy system for high-intensity activities lasting 30-90 seconds, breaking down glucose without oxygen and producing lactate as a byproduct.

Question 2

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

Accepted Answer

Muscle fiber hypertrophy through increased myofibrillar protein synthesis

Answer

Chronic resistance training stimulates increased myofibrillar protein synthesis, leading to greater cross-sectional area of muscle fibers (hypertrophy), particularly in type II fast-twitch 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

VO2max represents the maximum rate at which the body can consume and utilize oxygen during intense exercise, serving as the gold standard measurement of cardiorespiratory fitness and aerobic capacity.

Question 4

What is the FITT principle in exercise prescription?

Accepted Answer

Frequency, Intensity, Time, and Type of exercise

Answer

The FITT principle provides a framework for exercise prescription: Frequency (how often), Intensity (how hard), Time (how long), and Type (what kind of exercise), allowing systematic program design.

Question 5

What happens to blood pressure during resistance exercise?

Accepted Answer

Both systolic and diastolic pressure increase significantly

Answer

During resistance exercise, especially with heavy loads and the Valsalva maneuver, both systolic and diastolic blood pressure rise significantly due to increased peripheral resistance from muscle contraction.

(ACSM-CPT) American College of Sports Medicine Certified Personal Trainer Practice Test

(ACSM-CPT) American College of Sports Medicine Certified Personal Trainer Practice Test

ACSM-CPT Exercise Physiology