HICKS, A.L., J. KENT-BRAUN, and D.S. DITOR. Sex differences in human skeletal muscle fatigue. Exerc. Sports Sci. Rev., Vol. 29, No. 3, pp. 109–112, 2001. Research on muscle fatigue suggests that greater fatigue resistance may be evident in females compared with males. The possible mechanisms for this sex difference include factors related to muscle mass, substrate utilization, muscle morphology, and neuromuscular activation.