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Weight-bearingexercise and markersof bone turnover infemale athletes Dana L. CreightonAmy L. MorganDebra Boardley2001 год

Weight-bearing exercise and markers of bone turnover in female athletes
статья из журнала

Страница публикацииПубликация в OpenAlex
Аннотация: Weight-bearing activity provides an osteogenic stimulus, while effects of swimming on bone are unclear. We evaluated bone mineral density (BMD) and markers of bone turnover in female athletes ( n = 41, age 20.7 yr) comparing three impact groups, high impact (High, basketball and volleyball, n= 14), medium impact (Med, soccer and track, n = 13), and nonimpact (Non, swimming, n = 7), with sedentary age-matched controls (Con, n = 7). BMD was assessed by dual-energy X-ray absorptiometry at the lumbar spine, femoral neck (FN), Ward's triangle, and trochanter (TR); bone resorption estimated from urinary cross-linked N-telopeptides (NTx); and bone formation determined from serum osteocalcin. Adjusted BMD (g/cm; covariates: body mass index, weight, and calcium and calorie intake) was greater at the FN and TR in the High group (1.27 ± 0.03 and 1.05 ± 0.03) than in the Non (1.05 ± 0.04 and 0.86 ± 0.04) and Con (1.03 ± 0.05 and 0.85 ± 0.05) groups and greater at the TR in the Med group (1.01 ± 0.03) than in the Non (0.86 ± 0.04) and Con (0.85 ± 0.05) groups. Total body BMD was higher in the High group (4.9 ± 0.12) than in the Med (4.5 ± 0.12), Non (4.2 ± 0.14), and Con (4.1 ± 0.17) groups and greater in the Med group than in the Non and Con groups. Bone formation was lower in the Non group (19.8 ± 2.6) than in the High (30.6 ± 3.0) and Med (32.9 ± 1.9, P ≤ 0.05) groups. No differences in a marker of bone resorption (NTx) were noted. This indicates that women who participate in impact sports such as volleyball and basketball had higher BMDs and bone formation values than female swimmers.
Год издания: 2001
Авторы: Dana L. Creighton, Amy L. Morgan, Debra Boardley, P. Gunnar Brolinson
Издательство: American Physiological Society
Источник: Journal of Applied Physiology
Ключевые слова: Bone health and osteoporosis research, Muscle metabolism and nutrition, Body Composition Measurement Techniques
Другие ссылки: Journal of Applied Physiology (HTML)
PubMed (HTML)