冠動脈性心疾患または高血圧症を有する中高年女性患者の有酸素性能力の改善に必要な運動量

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To determine the minimum duration of exercise for improving the aerobic capacity of patients with coronary heart disease(CHD), 23 female patients with CHD and/or hypertension, and 52.8±8.7 years, were studied. After pre-testing, all the patients were conditioned for 4 months in order to elicit improvements in their aerobic capacity and other healthrelated factors. Duration and contents of daily activities were recorded by each patient. After 4 months, oxygen uptake at lactate threshold(VO_<2LT>) and VO_<2peak> were increased significantly from 12.9±2.6 to 16.0±3.4ml/kg/min and from 18.5±4.2 to 22.3±5.6ml/kg/min, respectively.Duration of exercise conditioning for the 4 months averaged 23.8±12.2min per day, ranging from 4.6 to 49.7min. Correlational analyses were applied in order to determine the extent to which the improvement in aerobic capacity was associated with the individual mean duration of exercise conditioning. As a result, changes in VO_<2LT> and VO_<2peak> correlated significantly with the exercise duration(Pearson's r=0.51, Spearman's rho=0.47 for VO_<2LT> ; Spearman's rho=0.58 for VO_<2peak>). Both VO_<2LT> and VO_<2peak> tended to improve markedly when daliy exercise duration was 20min or longer. Furthermore, it was shown that the improvement in aerobic capacity remained almost the same within a range of exercise duration of 20 to 60min. We suggest that the minimum exercise duration for improving the aerobic capacity of cardiac patients is 20 to 30min per day or 140min or more per week.
日本体力医学会の論文
1994-04-01

冠動脈性心疾患または高血圧症を有する中高年女性患者の有酸素性能力の改善に必要な運動量

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