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  • Title: Anthropometric survey of young swimmers.
    Author: Helmuth HS.
    Journal: Anthropol Anz; 1980 May; 38(1):17-34. PubMed ID: 7425587.
    Abstract:
    A survey of body dimensions and body composition of male (n = 39) and female (n = 54) swimmers aged 8--16 was conducted in order to determine if any differences exist when compared to their ordinary North American age-peers; to see how a vigorous exercise influences their bodily factors and to probe into the problem of a relationship between body size, structure and composition with swimming speed. Swimmers were consistently found to be taller, heavier and broader in their shoulders than ordinary same-age youths. A considerable decrease in skinfold thickness among boys, but not girls, was observed after 6 months of arduous swimming practice, due probably to sexual dimorphism in the response to workload or caused by initial differences in skinfold thickness. Even at the moderate level of exercise and the young age of swimmers, speed, as measured by 100m free-style times, was found to be positively correlated with shoulder width, chest circumference, hand and foot size and fat-free weight.
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