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KMID : 0381020120450050470
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Korean Journal of Nutrition
2012 Volume.45 No. 5 p.470 ~ p.478
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Dietary factors affecting bone mineral density in Korean rural postmenopausal women
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Choe Jeong-Sook
Ahn Eun-Mi
Kwon Sung-Ok
Park Young-Hee
Lee Jin-Young
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Abstract
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This study was conducted to investigate dietary factors, bone status, and bone loss in postmenopausal women in rural areas. A total of 189 women participated in the follow-up study after two years. Radius, Tibia, and Phalanx SOS (Speed of Sound) was measured on two occasions 2 years apart by ultra-sonic-metry, and % body fat was measured by bioelectrical impedance analysis at the baseline and after 2years. Dietary intake data were collected 4 times at different season by 24-hour recall method, and then calculated as average. Bone density of radius decreased by 4.2% during the two year period. When the subjects were divided into three groups, by bone decline level during two years, the lowest bone loss group had higher potassium and vegetable intake than other groups. Age and calcium intakes showed significant correlation with bone decline rate at tibia. In multiple regressions, the baseline SOS, vitamin A, vegetables and eggs intakes were found to be significant factors for tibia bone decline. In conclusion, dietary factors, such as higher vegetable intake, seem to affect the changes in bone mineral density in more favorable way. Therefore, efforts are needed to enhance the access to nutritional care for rural elderly postmenopausal women.
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KEYWORD
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Postmenopausal women, bone mineral density, radius, nutrient density, food intake
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