Skeletal Muscle Metabolism

Skeletal muscle metabolism involves how muscles generate energy to contract and perform work. When you move, muscles break down stored fuels like glucose and fats to produce ATP, the energy currency. During short, intense activity, muscles primarily use stored glucose (glycogen) through a quick process called glycolysis. For longer activities, fats become a major fuel source, providing sustained energy. The body also uses oxygen to efficiently produce ATP during aerobic respiration. This metabolism adapts based on the intensity and duration of activity, balancing energy sources to keep muscles functioning effectively.