Body composition of elite American athletes

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Abstract
Five hundred twenty-eight male athletes participating in 26 Olympic events and 298 female athletes partici pating in 15 Olympic events underwent determination of body fat percentage (% fat) and lean body mass (LBM) via hydrostatic weighing and/or anthropometric methods. All groups of athletes were below the average values for % fat of college age men and women of 15% and 25%, respectively. In general, athletes involved in a sport where their body weight is supported, such as canoe and kayak (males, 13.0 ± 2.5%; females, 22.2 ± 4.6%) and swimming (males, 12.4 ± 3.7%; females 19.5 ± 2.8%), tended to have higher % fat values. Athletes involved in sports where a weight class has to be made to compete, such as boxing (males, 6.9 ± 1.6%) and wrestling (male, Junior World Freestyle 7.9 ± 2.7%), events such as the 100, 200, and 400 meters in athletes (male 100 and 200 meters, 6.5 ± 1.2%; female 100, 200 and 400 meters, 13.7 ± 3.6%) that are very anaerobic in nature and extremely aerobic events such as the marathon (males, 6.4 ± 1.3%) demonstrated lower % fat values. Athletes involved in sports where body size is a definite advantage, such as basketball (males, 84.1 ± 6.2 kg; females, 55.3 ± 4.9 kg) and volleyball (males, 75.0 ± 6.6 kg; females, 58.4 ± 4.5 kg) tended to have a larger LBM.

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