ACE ACE Exercise Science & Physiology 2

Question 1

What is the primary fuel source during moderate-intensity aerobic exercise lasting 30–60 minutes?

Accepted Answer

A mix of carbohydrates and fats

Answer

Protein

Answer

Creatine phosphate

Answer

Ketone bodies exclusively

Question 2

Which principle describes the body's adaptation to progressively increasing exercise demands?

Accepted Answer

Progressive overload

Answer

Specificity

Answer

Reversibility

Answer

Individuality

Question 3

What is the primary cardiovascular adaptation seen after weeks of consistent aerobic training?

Accepted Answer

Decreased resting heart rate (bradycardia)

Answer

Decreased stroke volume

Answer

Increased resting heart rate

Answer

Reduced capillary density

Question 4

Which term describes the point during increasing exercise intensity at which lactate begins to accumulate faster than it is cleared?

Accepted Answer

Anaerobic threshold (lactate threshold)

Answer

VO2 max

Answer

Maximum aerobic speed

Answer

Oxygen debt

Question 5

How does heat stress affect exercise performance in a group fitness class?

Accepted Answer

It increases cardiovascular strain and reduces endurance capacity

Answer

It improves oxygen delivery to muscles

Answer

It has no effect below 85°F

Answer

It only affects participants over age 50

Question 6

What is the recommended method for estimating exercise intensity when heart rate monitors are unavailable?

Accepted Answer

Rating of Perceived Exertion (RPE)

Answer

Blood pressure measurement

Answer

Respiratory quotient analysis

Answer

Electromyography