Exercise Physiology: Theory and Application to Fitness and Performance 9th Edition by Scott Powers, Edward Howley

Exercise 14

Outline the signaling events that lead to endurance training-induced muscle adaptation.

Step 1 of 2

Endurance training increases oxygen consumption by muscle (VO₂ max) by 20% - 50%. It also improves the performance of an individual during submaximal endurance events. These changes in performance result from exercise induced cellular and physiological changes. Exercise induces certain signaling events that ultimately lead to alterations in the physiology. The following are the signaling events that make the skeletal muscles and cardiac muscles adapt to exercise training:

Repeated muscle contractions – they activate signalling events that lead to mitochondrial biogenesis, shift in muscle fiber type from fast – to slow, and increased expression of antioxidant enzymes