red fibers

(redirected from slow fiber)

red fi·bers

red skeletal muscle fibers that are rich in sarcoplasm, myoglobin, and mitochondria; they are smaller in diameter and contract more slowly than white fibers.
Synonym(s): slow fiber
References in periodicals archive ?
Slow Fiber Studios, a part of the World Shibori Network: www.
Several studies have shown that calcineurin controls the skeletal muscle fiber type by stimulating slow muscle gene promoters and slow fiber differentiation both in cultured cells and in vivo (Chin et al.
In the plantaris muscle of cats, slow fibers have 25 to 50% more myonuclei in a longitudinal section and a smaller average myonuclear domain size compared with fast fibers (Allen et al.