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폐경이후 여성의 영양섭취 및 활동관계와 골밀도의 상관관계에 관한 연구
문수재,최은정,이명희,임승길,허갑범 연세대학교 생활과학연구소 1993 生活科學論集 Vol.7 No.-
The purpose of the present study was to examine correlations between nutrient intake, physical activity and bone mineral density in postmenopausal women. The subjects were 18 normal and 17 osteoporotic subjects. A trained nutritionist interviewed the subject about their usual dietary intake and daily activity by means of a questionnaire, Bone mineral density was measured by dual photon absorptiometry. The age distribution of the subjects was 51-70 years. The results of this study can be summerized as follows: 1. The nutrient intake of the normal subjects showed higher value than the intake of osteoporotic subjects at all age levels. Seventy percent of the normal group had taken more than 70% of the Recommended Dietary Allowance in 8 out of the 9 nutrients measured in this study. On the other hand 50% of the osteoporotic group had taken below 70% of RDA in protein, vitamin A, riboflavin and ascorbic acid. 2. The dietary sources of calcium were compared between the normal and the osteoporotic group. Plant sources provided most of the calcium in both groups, but the normal group had higher calcium intake from animal sources than the osteoporotic group. Among the total calcium intake, calcium intake from milk and milk products was very low and contributed only 10 - 13% for the normal group and 4 -5% for osteoporotic group. 3. There was a positive correlation between nutrient intake and bone mineral density. In particular, dietary calcium intake showed a highly significant positive correlation with bone mineral density of spine, femur neck, Ward's triangle and trochanteric region(p < 0.01) in subjects between the ages 51 - 60 years. 4. All the normal group subjects showed significantly higher physical activity and daily total energy expenditure than the osteoporotic group subjects. Higher physical activity was significantly associated with greater bone mineral density of four sites(p < 0.01, p < 0.05) In conclusion, physical activity as well as dietary calcium intake seemsto be important in preventing osteoporosis on postmenopausal women.