中高年者に対する低圧低酸素環境下の歩行運動が末梢循環に及ぼす影響

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The purpose of this study is to elucidate the effects of walking exercise in a hypobaric hypoxic environment on peripheral blood circulation with accelerated plethysmogram (APG) in middle-aged and elderly men. According to APG findings, five waves (a-e) were discriminated in APG waveform. The region (a and e wave) above the baseline of APG was defined as positive area (+). The region (b, c, and d wave) below the baseline of APG was defined as negative area (-). Before (at rest) and after the training in a hypobaric hypoxic environment (HE) and a normobaric environment (NE), the following parameters were measured : APG Index, the ratios of b/a and d/a. APG Index was formulated as (-b+c+d)/a×100. In the experiment 1, sixteen male subjects volunteered for the present study. The subjects were asked to rest for 20 minutes in two environments: HE at a simulated altitude of 1500 m and NE at sea level. In the experiment 2, four male subjects were asked to exercise in HE (1500m) for 60 min/day, 2-3 days/week for 4 weeks. The ratio of d/a at rest in HE was significantly higher than in NE (p< 0.001). APG Index at rest in HE was significantly higher than in NE (p < 0.05). APG was temporarily improved by acute HE. The ratio of b/a after the training for 4 weeks was significantly lower than that before the training (p < 0.05).The ratio of d/a and APG Index after the training for 4 weeks were significantly higher than that before the training (p < 0.05, p < 0.05).These results suggest that walking exercise in a hypobaric hypoxic environment may be a useful method for improvement of peripheral circulation and exercise treatment in middle and elderly men.
東海大学の論文
2005-03-31

中高年者に対する低圧低酸素環境下の歩行運動が末梢循環に及ぼす影響

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