Intracellular Mechanisms of Muscle Hypertrophy: Why Does Muscle Increase in Size When Exercing with Weights? A Literature Review

Abstract

Increase lean mass and decrease fat mass is a desire all people. Many people go to the gym to lift weights and increase muscle size. However, a large part of this public does not know what mechanisms promote these changes and abandon the muscle hypertrophy program before reaching the desired results. Many factors mediate the hypertrophic process, and the majority are induced by exercise, such as mechanical tension, muscle damage and metabolic stress. Therefore, the objective of this article is describe the main signaling pathways involved in hypertrophy.