風雨が走行時の体温調節および呼吸循環応答に及ぼす影響

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  • 山本 彩未
    武庫川女子大学文学部健康・スポーツ科学科 中京大学大学院体育学研究科運動生理学研究室
  • 北川 薫
    中京大学大学院体育学研究科運動生理学研究室

書誌事項

タイトル別名
  • EFFECTS OF WIND AND RAIN ON THERMOREGULATORY AND CARDIOVASCULAR-RESPIRATORY RESPONSES DURING RUNNING IN HUMANS
  • フウウ ガ ソウコウジ ノ タイオン チョウセツ オヨビ コキュウ ジュンカン オウトウ ニ オヨボス エイキョウ

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抄録

The effects of wind and rain on exercising humans have not been fully investigated in the field of sports science. The purpose of this study was to investigate the characteristics of thermoregulation and cardiovascular-respiratory responses during exercise in a climate chamber that allowed control of wind and rain. Seven healthy males performed treadmill running at 70%VO2max for 30 min under three conditions (CON, control ; WIND, wind only; WIND&RAIN, both wind and rain). The temperature was 27.0℃ under the three conditions. Relative humidity was 60%RH except under the WIND&RAIN condition (100%RH under WIND&RAIN condition). The wind velocity corresponded to running velocity in the open air and the precipitation was 90 L/h. Under the WIND&RAIN condition, both body trunk and extremities skin temperature (Tsk) showed a clear decrease for the first 5 minutes after the start of running, and was significantly lower during the running period than under the other two conditions (p<0.05). Rectal temperature (Tre) did not differ significantly among the three conditions. An interaction was observed between conditions and time in terms of minute ventilation (VE) (p<0.05). Under WIND and WIND&RAIN conditions, VE was higher than under CON condition while running. Oxygen consumption, heart rate and respiratory exchange ratio did not differ significantly among the three conditions. These results indicate that wind and rain in a natural environmental condition with neutral temperature (27.0℃), cause a decline in Tsk, and may become factors that influence performance, similarly to temperature and humidity.

収録刊行物

  • 体力科学

    体力科学 58 (2), 247-254, 2009

    一般社団法人日本体力医学会

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