Nakamura K, Takahashi H, Shimai S, Tanaka M
Department of Hygiene and Preventive Medicine, Fukushima Medical College, Fukushima City, Japan.
Ergonomics. 1996 Feb;39(2):257-66. doi: 10.1080/00140139608964456.
This study was conducted to determine whether bathing in tepid water is effective in facilitating recovery from fatigue after submaximal exercise. Subjects were six young healthy male university students. Following cycle exercise at 80% aerobic power (VO2 max) for 10 min, recovery was observed during and after 10-min bathing. Three conditions were set; (1) water temperature of 38 degrees C, (2) water temperature of 30 degrees C, and (3) no water in the bath tub (control). Measurements were heart rate, blood pressure, skin temperature, rectal temperature, blood lactase and subjective feelings. There were no significant differences in heart rate and blood pressure between the three conditions at any time. Mean skin temperature and rectal temperature decreased more rapidly after the 30 degrees C bathing than the other two conditions (p < 0.05). Lactate removal was largest for the 30 degrees C bathing, with significant difference between the 30 degrees C bathing condition and the no bathing condition (p < 0.05). Recovery from fatigue was best for the 30 degrees C bathing and worst for the control in terms of subjective feeling. In summary, it was shown that immersion in 30 degrees C water after submaximal exercise resulted in a larger removal of lactate than recovery in air.
本研究旨在确定温水浴是否有助于次最大运动后疲劳的恢复。受试者为六名年轻健康的男性大学生。在以80%有氧功率（VO2 max）进行10分钟的自行车运动后，观察10分钟沐浴期间及之后的恢复情况。设置了三个条件：（1）水温38摄氏度，（2）水温30摄氏度，（3）浴缸中无水（对照）。测量指标为心率、血压、皮肤温度、直肠温度、血乳酸和主观感受。在任何时候，三种条件下的心率和血压均无显著差异。30摄氏度沐浴后，平均皮肤温度和直肠温度下降速度比其他两种条件更快（p < 0.05）。30摄氏度沐浴时乳酸清除量最大，30摄氏度沐浴条件与不沐浴条件之间存在显著差异（p < 0.05）。就主观感受而言，3摄氏度沐浴后疲劳恢复最佳，对照条件下最差。总之，研究表明，次最大运动后浸泡在30摄氏度水中比在空气中恢复能导致更大的乳酸清除。
