Article PubMed
Journal of applied physiology (Bethesda, Md. : 1985)  (2005)

Contractile abilities of normal and "mini" triceps surae muscles from mice (Mus domesticus) selectively bred for high voluntary wheel running.

Syme, Douglas A; Evashuk, Kristin; Grintuch, Benjamin; Rezende, Enrico L; Garland, Theodore