水泳運動が閉経後女性の有酸素性能力と血中脂質・リポ蛋白プロフィールに及ぼす影響

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This study was designed to evaluate effects of long-term swimming training on maximal aerobic capacuty and sernm lipid and lipoprotein profile of postmenopausal women. In the first study, 12 swimming-trained postmenopausal women (age : 58±3 yrs, BMI : 22±2 kg/m^2, training distance : 3.6±1.6km/wk, mean±SD) were compared cross-sectionally with 50 age-matched untrained women (58±5 yrs, 23±2 kg/m^2). Swimming-trained women had higher maximal oxygen uptake (Vo2max) than untrained (34±5 vs. 30±5 ml/kg/min, P<0.05). Serum total- and HDL-cholesterol (T-C and HDL-C) and triglyceride (TG) concentrations in swimmers were similar to those in untrained (T-C : 232±23 vs. 220±44 mg/dl, HDL-C : 69±15 vs. 72±17mg/dl, TG : 83±21 vs. 99±67mg/dl). On the other hand, swimmers had higher serum LDL-cholesterol concentrations (LDL-C) than untrained women (161±28 vs. 138±25 mg/dl, P<0.05). The second study was conducted to test the effects of a 2-year swimming program on Vo2max and sernm lipid and lipoprotein concentrations of postmenopausal untrained women. After the swimming program 10 trained women (age : 59±7 yrs, BMI : 23±3 kg/m^2, Vo2max : 30±3 ml/kg/min at baseline, training condition : one hour/session, frequency : 1.5±0.4 times/week during the program) and 12 untrained women (60±5 yrs, 23±3 kg/m^2, 29±5 ml/kg/min at baseline) were retested. No change in BMI was observed in the two groups. At the 2 year follow up, the trained women increased Vo2max (34±5 ml/kg/min, P<0.05), whereas no change in Vo2max was observed in the untrained women (30±5 ml/kg/min). No changes occurred in concentrations of T-C (Trained : 238±25→233±21 mg/dl, Untrained : 236±20→236±32 mg/dl), HDL-C (Trained : 70±15→74±16 mg/dl, Untrained : 69±15→69±14 mg/dl), LDL-C (Trained : 150±29→144±27 mg/dl, Untrained : 144±15→145±23mg/dl), and TG (Trained : 90±32→74±25 mg/dl, Untrained : 115±81→106±52 mg/dl). These results suggest that although a long-term swimmming program can increase maximal aerobic capacity, favorable changes in sernm lipids or lipoproteuns can not be expected for postmenopausal women.
日本体力医学会の論文
2001-04-01

水泳運動が閉経後女性の有酸素性能力と血中脂質・リポ蛋白プロフィールに及ぼす影響

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