Elite swimmers do not exhibit a body mass index trade-off across a wide range of event distances

We examined data from the 2012 Olympics to test whether swimmers’ phenotypes differed across event distances. We show that across all swimming event distances, from the 50 m sprint to the 10 000 m marathon, swimmers converge on a single optimal body mass index (BMI) in men's and women's events, in marked contrast with the strong inverse relationship between BMI and event distance found in runners. The absence of a speed–endurance trade-off in the body proportions of swimmers indicates a fundamental difference in design pressures and performance capability in terrestrial versus aquatic environments.
Source: Proceedings of the Royal Society B: Biological Sciences - Category: Biology Authors: Tags: behaviour, biomechanics, evolution Morphology and biomechanics Source Type: research