Sex differences in youth elite swimming
Fig 3
Relative performance decline across US ranking.
The decline in swimming performance (% 1st Place) across US ranking for boys (blue) and girls (red; mean ± 95% confidence interval; Panel A). The average annual membership numbers (Panel B) for boys (blue) and girls (red) of USA Swimming. The heat maps (Panels C and D) display the sex differences in swimming velocity of the top 5 US Rankings (Panel C) and the 10th-50th US Rankings (Panel D) using the same color values displayed in Fig 2.