gluteusmedius (GM), serratus ventralis (SV), and semimembranosus (SM)]. Sides (n = 40) of beef (20 per quality grade category) (USDA, 1997) were selected from a commercial beef processing facility. Carcasses were selected and verified by trained Texas Tech University personnel through visual appraisal of marbling and maturity of the product at the time of selection.