Lactate dehydrogenase isoenzymes: distribution in fast-twitch red, fast-twitch white, and slow-twitch intermediate fibers of guinea pig skeletal muscle
Peter, J.B.; Sawaki, S.; Barnard, R.J.; Edgerton, V.R.; Gillespie, C.A.
Archives of Biochemistry and Biophysics 144(1): 304-307
Lactate dehydrogenase activity and Ldh isoenzyme distribution were determined in supernatants of skeletal muscles consisting predominately of fast-twitch red, fast-twitch white, or slow-twitch intermediate fibers. The Ldh activity was highest in the fast-twitch white. The activity in the fast-twitch red was significantly lower than in the fast-twitch white but significantly greater than in slow-twitch intermediate muscle or the heart.