Fast-twitch fibers is defined as the muscle fibers that produce fast contractions but fatigue rapidly. It is one of several types of muscle fibers found in skeletal muscle. Fast-twitch fibers is also called Type II fibers which is characterized as having low oxidative capacity but high glycolytic capacity.

Related Articles

Muscle spindle at■■■■
Muscle spindle: Muscle spindle is defined as a muscle stretch receptor oriented parallel to skeletal . . . Read More
Type IIb fibers at■■■
Type IIb fibers: Type IIb fibers refer to fibers that have a relatively small number of mitochondria, . . . Read More
Type I fibers at■■■
Type I fibers: Type I fibers refer to fibers that contain large numbers of oxidative enzymes and are . . . Read More
Sphincter muscle at■■■
Sphincter muscle: Sphincter muscle refers to a type of parallel muscle that is a technically endless . . . Read More
Intermediate fibers at■■■
Intermediate fibers: Intermediate fiber refers to muscle fiber type that generates high force at a moderately . . . Read More
Lactic acid at■■■
Lactic acid: Lactic acid refers to an end-product of glucose metabolism in the glycolytic pathway; formed . . . Read More
Perimysium at■■■
Perimysium: Perimysium refers to the connective tissue surrounding the fasciculus of skeletal muscle . . . Read More
Physical activity at■■■
Physical activity: Physical activity refers to any bodily movement produced by contraction of the skeletal . . . Read More
Golgi tendon organs (GTO) at■■■
Golgi tendon organs (GTO): Golgi tendon organ (GTOs) refer to a tension receptor located in series with . . . Read More
Type IIa fibers at■■
Type IIa fibers: Type IIa fibers refer to fibers that contain biochemical and Fatigue characteristics . . . Read More