When and Why Do Sex Differences in Handgrip Strength Emerge? Age‐Varying Effects of Testosterone From Childhood to Older Adulthood

Sex difference in handgrip strength appears to be driven, in part, by the testosterone levels. However, this difference can be observed even before the onset of puberty, which suggests that testosterone alone does not fully explain the sex difference in muscle strength. This finding may have important implications for decisions regarding inclusivity and fairness in sports that emphasize strength.