Figure 2
Swimming speed of the top three athletes with 2-years age groups for athletes between 10 and 29 years for the different distances. 50 m freestyle (Panel A ), 100 m freestyle (Panel B ), 200 m freestyle (Panel C ), 400 m freestyle (Panel D ), 800 m freestyle (Panel E ) and 1,500 m freestyle (Panel F ). The arrow indicates the fastest age group and a rectangle indicated with ‘NS’ shows age groups not significantly different from the fastest age group.