水中および陸上歩行時の呼吸循環器系の応答

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This study examined cardiorespiratory responses during a water walking by using "Flowmill", whose apparatus is equipped with a treadmill in a water tank and can control the velosity of both a water flow and a belt. And then cardiorespiratory responses during a land walking by using treadmill was measured. Thirteen male subjects participated in this study; their age, stature, weight, and %fat were 35.8±8.lyr, 170.4±6.3cm, 68.4±10.0kg, and 20.2±7.1%, respectively. Both kinds of walkings were performed by the flowmill and the treadmill, continued for 20min. Velosity increased every 5 min, the flowmill (with a water flow and a belt) and treadmill velosities were 30, 40, 50, and 60m/min, and 60, 80, 100, and 120m/min, respectively. The water temperature and the depth of flowmill were 34℃ and 105cm, respectively. Oxygen consumption (Vo_2), heart rate (HR), and systolic blood pressure (SBP) were measured during last one minute at each velosity, and oxygen pulse and RPP (rate pressure products) were calculated. Vo_2, HR, and SBP during the flowmill walking were similar to each one of those values during the treadmill walking in every stage. Also, the relationship between Vo_2 and HR is similar with both walkings. Oxygen pulse and RPP to the same Vo_2 showed similar responses during both walkings. These results suggest that thanks to the flowmill walking by the additition of a water flow, we elicited a physiological load equivalentable to that at the half velosities during the treadmill walking, and that in the case of the same exercise intensity, cardiorespiratory responses during the flowmill walking are similar to those during the treadmill walking.
久留米大学の論文
1994-04-01

水中および陸上歩行時の呼吸循環器系の応答

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