Fastoxidative
Fastoxidative is a term used in biology and exercise physiology to describe a specific type of muscle fiber. These fibers, also known as Type IIa or intermediate fast-twitch fibers, possess characteristics that fall between slow-oxidative (Type I) and fast-glycolytic (Type IIb or IIx) fibers. Fastoxidative fibers have a relatively high capacity for aerobic respiration, meaning they can produce ATP efficiently using oxygen. This oxidative capacity contributes to their resistance to fatigue, though not to the same extent as slow-oxidative fibers.
Despite their oxidative capabilities, fastoxidative fibers also have a significant capacity for anaerobic glycolysis, allowing them