title: Sex differences in athletic performance emerge coinciding with the onset of male puberty.
abstract: BACKGROUND
  Male performance in athletic events begins to exceed that of age-matched females during early adolescence, but the timing of this divergence relative to the onset of male puberty and the rise in circulating testosterone remains poorly defined.
  
  
  METHODS
  This study is a secondary quantitative analysis of four published sources which aimed to define the timing of the gender divergence in athletic performance and relating it to the rise in circulating testosterone due to male puberty.
  
  
  METHODS
  Four data sources reflecting elite swimming and running and jumping track and field events as well as hand-grip strength in nonathletes were analysed to define the age-specific gender differences through adolescence and their relationship to the rising circulating testosterone during male puberty.
  
  
  RESULTS
  The onset and tempo of gender divergence were very similar for swimming, running and jumping events as well as the hand-grip strength in nonathletes, and all closely paralleled the rise in circulating testosterone in adolescent boys.
  
  
  CONCLUSIONS
  The gender divergence in athletic performance begins at the age of 12-13 years and reaches adult plateau in the late teenage years with the timing and tempo closely parallel to the rise in circulating testosterone in boys during puberty.
authors.affiliation: ANZAC Research Institute, University of Sydney, Sydney, NSW, Australia.
authors.forename: David J
authors.identifier: http://orcid.org/0000-0002-4200-7476
authors.initials: DJ
authors.lastname: Handelsman
mesh_terms: D000293:Adolescent; D054874:Athletic Performance / Q000502:physiology*; D002648:Child; D018737:Hand Strength / Q000502:physiology; D006801:Humans; D008297:Male; D011627:Puberty / Q000502:physiology*; D012727:Sex Characteristics; D013550:Swimming / Q000502:physiology; D013739:Testosterone / Q000097:blood
chemical_list: D013739:Testosterone
keywords: age group; performance; puberty; swimming; testosterone; track and field