اقتباس:
(On average, males are physically stronger than females. The difference is due to females, on average, having less total muscle mass than males, and also having lower muscle mass in comparison to total body mass. While individual muscle fibers have similar strength, males have more fibers due to their greater total muscle mass. The greater muscle mass of males is in turn due to a greater capacity for muscular hypertrophy as a result of men's higher levels of testosterone. Males remain stronger than females, when adjusting for differences in total body mass. This is due to the higher male muscle-mass to body-mass ratio.[Maughan R J, Watson J S, Weir J (1983). "Strength and cross-sectional area of human skeletal muscle". The Journal of Physiology 338 (1): 37–49.]):(Wikipedia, the free encyclopedia - Sex differences in humans - Skeleton and muscular system - Strength, power and muscle mass)