Which other factors affect muscle strength?

Differences in muscle strength between individuals seem to be mostly explained by differences in muscle mass,^{[1][2][3][4][5]} which is supported by the mechanistic rationale that a larger muscle has greater force-generating capacity.^[6] Other contributors to muscle strength include neural factors,^[7] such as the threshold at which motor units are recruited and the motor unit discharge rate, and genetics.^[8] Additionally, simply practicing the test used to examine strength (e.g., a back squat 1-repetition maximum) can promote increases in strength.^[9][10]