運動後の回復過程における体温調節反応の性差

THE GENDER DIFFERENCES IN THERMOREGULATORY RESPONSES DURING EXERCISE RECOVERY

Takatsu Satomi

Yamasaki Masahiro

Hasegawa Hiroshi

体力科学 : Japanese Journal of Physical Fitness and Sports Medicine

The purpose of this study was to investigate the gender differences in thermoregulatory responses during the recovery from prolonged exercise. Fourteen (7 males and 7 females) subjects cycled for 45 minutes at 55%V^^・O_2max and then rested for 105 minutes in the hot and humid environment (30℃, 80% relative humidity) or cool environment (20℃, 60% relative humidity). Both males and females showed same variations in rectal temperature (Tre) during exercise and recovery periods. Total sweat volume and water intake were significantly larger in males than in females during recovery in the both environments. In the heat condition, mean skin temperature (Tsk) decreased immediately after the cessation of exercise in females but not in males (the recovery period (R) 5-15min: p<0.01, R15-20 min: p<0.05). These results suggested there are gender-related differences in the mechanisms and also the process maintaining the balance of heat production and heat loss response during recovery from prolonged exercise. Moreover the heat might modify gender differences of heat loss response during recovery as an important factor.

prolonged exercise

thermoregulation

gender differences

hot environment

Medical sciences [ 490 ]

jpn

日本体力医学会

日本体力医学会

本文データは学協会の許諾に基づきCiNiiから複製したものである

[ISSN] 0039-906X

[NCID] AN00137986

[NAID] 110006782383

[URI] http://joi.jlc.jst.go.jp/JST.JSTAGE/jspfsm/57.295