Journal article

BONE-DENSITY AT WEIGHT-BEARING AND NONWEIGHT-BEARING SITES IN BALLET DANCERS - THE EFFECTS OF EXERCISE, HYPOGONADISM, AND BODY-WEIGHT

N YOUNG, A FORMICA, G SZMUKLER, E SEEMAN

The Journal of Clinical Endocrinology & Metabolism | ENDOCRINE SOC | Published : 1994

Abstract

Exercise is recommended as a means of preventing osteoporosis. When intensive, weight-bearing exercise is often associated with hypogonadism. As weight-bearing exercise is likely to be more beneficial at weight-bearing than nonweight-bearing sites, and hypogonadism is likely to be more detrimental to trabecular than cortical bone, we tested the hypothesis that exercise and hypogonadism result in differing regional effects: net benefits at weight-bearing, predominantly cortical sites, and net deficits at nonweight-bearing trabecular-rich sites. Bone density (grams per cm2), body fat, and fat-free mass (kilograms) were measured using dual x-ray absorptiometry in 44 ballet dancers, aged 17.0 +/..

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