ACE ACE Exercise Science & Physiology

Question 1

What is the term for the body's ability to consume and use oxygen during sustained exercise?

Accepted Answer

VO2 max

Answer

Anaerobic capacity

Answer

Stroke volume

Answer

Cardiac output

Question 2

Which energy system is the primary source of ATP during the first 10 seconds of high-intensity exercise?

Accepted Answer

Phosphocreatine (ATP-PC) system

Answer

Oxidative system

Answer

Glycolytic system

Answer

Beta-oxidation

Question 3

What physiological response is known as the 'afterburn effect' following vigorous exercise?

Accepted Answer

EPOC (Excess Post-exercise Oxygen Consumption)

Answer

Thermoregulation

Answer

Anaerobic threshold shift

Answer

Hormonal cascade

Question 4

Which muscle fiber type is most recruited during a low-intensity, long-duration group fitness class?

Accepted Answer

Type I slow-twitch

Answer

Type IIb fast-twitch

Answer

Type IIa fast-twitch

Answer

Type IIx glycolytic

Question 5

What is the Karvonen formula used to calculate in exercise programming?

Accepted Answer

Target heart rate reserve

Answer

Maximum oxygen uptake

Answer

Caloric expenditure per session

Answer

Lactate threshold

Question 6

Which response best describes cardiac output during moderate aerobic group exercise?

Accepted Answer

It increases via rises in heart rate and stroke volume

Answer

It decreases due to vasodilation

Answer

It remains unchanged from resting levels

Answer

It increases only through elevated stroke volume