MES Exercise Physiology & Fitness Testing 2

Question 1

A client's respiratory exchange ratio (RER) during steady-state exercise is 0.85. Which macronutrient is being used as the primary fuel source?

Accepted Answer

Fat

Answer

An RER near 0.70 indicates pure fat oxidation, and 0.85 reflects a primarily fat-based mixture with some carbohydrate contribution.

Question 2

Which test is most commonly used to estimate muscular endurance of the core in a clinical population?

Accepted Answer

McGill Torso Muscular Endurance Test Battery

Answer

The McGill Torso Muscular Endurance Test Battery (side bridge, trunk flexion, extension) is a validated, low-risk assessment suitable for clinical populations.

Question 3

Which formula is used to estimate maximal heart rate in exercise prescription for apparently healthy adults?

Accepted Answer

220 – age

Answer

220 minus age is the most widely used formula for estimating age-predicted maximal heart rate in exercise prescription.

Question 4

Which factor most directly causes the rightward shift of the oxyhemoglobin dissociation curve during intense exercise?

Accepted Answer

Increased temperature, CO₂, and decreased pH

Answer

Increased temperature, elevated CO₂ (Bohr effect), and decreased pH from lactate production all shift the curve right, promoting O₂ release to working muscles.

Question 5

What does the talk test identify in relation to exercise intensity?

Accepted Answer

Approximate ventilatory threshold

Answer

The talk test identifies the ventilatory threshold because hyperventilation at this intensity makes comfortable conversation difficult.

MES - ACE Medical Exercise Specialist Practice Test

MES - ACE Medical Exercise Specialist Practice Test

MES Exercise Physiology & Fitness Testing 2