MES Exercise Physiology & Fitness Testing 3

Question 1

Which equation is used to calculate target heart rate using heart rate reserve (Karvonen method)?

Accepted Answer

THR = (MHR – RHR) × intensity% + RHR

Answer

The Karvonen formula incorporates resting heart rate to personalize the target training zone: THR = (MHR – RHR) × intensity% + RHR.

Question 2

Which body composition assessment method uses electrical resistance to estimate fat-free mass?

Accepted Answer

Bioelectrical impedance analysis (BIA)

Answer

BIA sends a low electrical current through the body; fat-free mass conducts electricity better than fat, allowing estimation of body composition.

Question 3

A 50-year-old male has a resting HR of 65 bpm and an estimated MHR of 170 bpm. What is his heart rate at 70% HRR?

Accepted Answer

138.5 bpm

Answer

HRR = 170 – 65 = 105; 70% HRR = 73.5; THR = 73.5 + 65 = 138.5 bpm using the Karvonen formula.

Question 4

Which muscle fiber type predominates in activities requiring sustained aerobic endurance?

Accepted Answer

Type I (slow-twitch oxidative)

Answer

Type I slow-twitch fibers have high mitochondrial density and fatigue resistance, making them ideal for sustained aerobic activities.

Question 5

Which principle of training states that the body adapts specifically to the type of stress placed upon it?

Accepted Answer

SAID principle (Specific Adaptation to Imposed Demands)

Answer

The SAID principle holds that the body adapts in a manner specific to the type, speed, and pattern of training stress applied.

MES - ACE Medical Exercise Specialist Practice Test