Question

Which of the following are contributors to the decrease in performance capacity we see with weeks to months of detraining (no exercise)/ Select all that apply

A. a decrease in COmax

B. An increase in vo2 max

C. A decrease in mitochondrial content

d. muscle memory helps us maintain aerobic capacity

E. an increase in protein turnover rates

Answer 1

Option A and C are the correct answers.

Due to detraining for a week to month the cardiac output (CO) decreases because of reduction in muscle mass of the heart. Mitochondrial content (proteins responsible for mitochondrial metabolic process) also decreases.

Option B is not correct because VO2 max (maximum rate of oxygen use by lungs, heart and muscle) decreases with detraining.

Option E is not correct because proteins turnover rates decreases with detraining.

Option D is also not correct because muscle memory maintain the performance capacity up to 3 months.