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

During moderate-intensity sustained exercise the body utilizes a blend of carbohydrates and fats, with the ratio shifting based on intensity and duration.

Question 2

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

Accepted Answer

Progressive overload

Answer

The principle of progressive overload states that the body must be exposed to gradually increasing stress to continue making fitness adaptations.

Question 3

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

Accepted Answer

Decreased resting heart rate (bradycardia)

Answer

Chronic aerobic training increases stroke volume, allowing the heart to pump more blood per beat, which results in a lower resting heart rate.

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

The anaerobic threshold (lactate threshold) is the exercise intensity above which lactate accumulates in the blood faster than it can be removed.

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

Heat stress forces the cardiovascular system to divert blood to the skin for cooling, reducing blood flow to muscles and increasing heart rate at the same workload.

ACE - American Council on Exercise Group Fitness Practice Test

ACE - American Council on Exercise Group Fitness Practice Test

ACE ACE Exercise Science & Physiology 2