中年女性長距離ランナーの栄養摂取状況

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Nutritional profiles in middle-aged trained and untrained women were compared both before and after menopuse. Subjects were assigned to one of four groups : (1) Pre-menopausal trained (Pre-T : n=14, aged 43±5 years, running distance 56±27 km/week, Vo_2max 49±4 ml/kg/min, mean±SD), (2) Pre-menopausal untrained (Pre-UT : n=25, 42±5 years, 34±5 ml/kg/min), (3) Post-menopausal trained (Post-T : n=19, 53±3 years, 49±17 km/week, 42±6 ml/kg/min), (4) Post-menopausal untrained (Post-UT : n=26, 54±3 years, 31±3 ml/kg/min). There were no significant differences in hematocrit (range 38.7 to 39.3%), hemoglobin (12.8 to 13.1 g/dl) and total protein (6.9 to 7.1 g/dl) among the four groups. Serum iron concentrations in the post-menopausal women (Post-T : 97±30 μg/dl, Post-UT : 106±29 μg/dl). atively higher than in the pre-menopausals (Pre-T : 85±35 μg/dl, Pre-UT : 78±33 μg/dl). Mean total iron binding capacity in Post-UT (326 μg/dl) was lower than other groups (352 to 361 μg/dl). Higher serum fenitin levels were observed in the post-menopausal women (Post-TT : 60.4±47.1 ng/ml) than the pre-menopausals (Pre-T : 18.3±13.1 ng/ml, Pre-UT : 16.6±10.7 ng/ml). Intake levels of the four groups with regard to the major nutrients were sufficient as compred with the recommended dietary allowance appropriate for age, sex and physical activity level. Intakes of calcium, iron and vitamins B_1, B_2 and niacin were higher in the trained groups than in the untrained. Regulady performed endurance exercise resulted in higher protein and iron intakes associated with higher energy intakes both before and after menopause. These results suggest that nutritional status of middle-aged women who regulady perform vigorous endurance running could be adequate for maintaining their health in a good state.
日本体力医学会の論文
1992-04-01

中年女性長距離ランナーの栄養摂取状況

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