| Autor: |
Drinkwater, B L, Bruemner, B, Chesnut, C H 3rd |
| Předmět: |
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| Zdroj: |
JAMA: Journal of the American Medical Association; 1/26/90, Vol. 263 Issue 4, p545-548, 4p |
| Abstrakt: |
The relationship of prior menstrual irregularities and current menstrual status to the bone density of 97 young athletes was determined at seven sites using single- and dual-photon absorptiometry. Menstrual patterns were ranked on a scale of 1 to 9 in terms of their potential adverse affect on bone. Only vertebral density was significantly related to menstrual patterns (r = -.43). Women who had always had regular cycles had higher lumbar densities (1.27 g/cm2) than those with a history of oligomenorrhea/amenorrhea interspersed with regular periods (1.18 g/cm2). The lumbar density of both groups exceeded that of women who had never had regular cycles (1.05 g/cm2). Body weight became more important as a predictor variable as the severity of menstrual irregularities increased. The combination of menstrual pattern and body weight predicted 43% of the total variation in lumbar density. These data suggest that extended periods of oligomenorrhea/amenorrhea may have a residual effect on lumbar bone density. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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