Citation

Gallup AC, O'Brien DT, White DD, Wilson DS. Evol. Psychol. 2010; 8(2): 229-243.

Copyright

(Copyright © 2010, The Author(s), Publisher Ian Pitchford and Robert M. Young)

DOI

unavailable

PMID

unavailable

Abstract

Handgrip strength (HGS) is highly heritable and a good overall measure of strength and muscle function. Indicative of blood testosterone levels and fat-free body mass, HGS is also highly sexually dimorphic. Recent psychological research shows that HGS is correlated with a number of social variables, but only in males. We conducted three studies to further investigate the relationship between HGS and measures of aggression and social competition among adolescents. Consistent with previous reports, correlations were almost exclusive to males, but this was only visible during late adolescence (i.e., high school). These findings support evolutionary hypotheses regarding grip strength in male-male competition and suggest that similar to measures of testosterone, HGS is a measure that is predictive of social behavior in older adolescent males. (PsycINFO Database Record (c) 2010 APA, all rights reserved) (journal abstract)