高温熱ストレス環境下におけるレーシングドライバーに深部体温の連続計測と解析 Inverstigation of Thermal Stress in Racing Kart Athletes

この論文にアクセスする

この論文をさがす

著者

抄録

金沢大学自然科学研究科Motor racing drivers may be exposed to thermal stress, which can influence their performance and put them at risk of heat stroke. The aim of the work described here was to monitor core body temperature and other physiological and environmental variables continuously in racing kart drivers and to investigate the relationship between core body temperature and lap-time/lap-time-variability, the latter being an indication of driver performance. As an indication of core temperature we used the eardrum temperature, Teardrum, measured with a modified, extremely-compact radiation thermometer. We also measured instantaneous heart rate, the vector magnitude of acceleration, G, sweat weight, ambient temperature and relative humidity in the racing suit and full-face helmet, Ta(suit)/RHsuit/Ta(met)/RHmet, road temperature, and lap-time. The measuring instruments functioned satisfactorily during karting performed on a racing circuit. In all participants (n= 15: 30.9 ツア6.4 S.D. yrs) during driving, we found that Teardrum gradually increased from 36.8ツーC to 38.2ツーC It is suggested that the observed rise in Teardrum could be due to the G stresses to which the driver's were subjected, as heat production of the body was increased due to the increased muscle activity against G during driving. In addition, we found that the degradation of the local environment around the body (Ta(suit)/max= 41.0ツーC,RHsuit/max=96.6%,Ta(met)/max= 41.0 ツーC, RHmet/max=93.5%) could be also be one of the major factors. We also found a statistically significant correlation between Teardrum and lap-time/lap-time-variability. These results suggest that monitoring of Teardrum could be of considerable importance in protecting racing drivers from heat stroke and assessing their performance during motor racing.

Motor racing drivers may be exposed to thermal stress, which can influence their performance and put them at risk of heat stroke. The aim of the work described here was to monitor core body temperature and other physiological and environmental variables continuously in racing kart drivers and to investigate the relationship between core body temperature and lap-time/lap-time-variability, the latter being an indication of driver performance. As an indication of core temperature we used the eardrum temperature, T<sub>eardrum</sub>, measured with a modified, extremely-compact radiation thermometer. We also measured instantaneous heart rate, the vector magnitude of acceleration, G, sweat weight, ambient temperature and relative humidity in the racing suit and full-face helmet, T<sub>a(suit)</sub>/RH<sub>suit</sub>/T<sub>a(met)</sub>/RH<sub>met</sub>, road temperature, and lap-time. The measuring instruments functioned satisfactorily during karting performed on a racing circuit. In all participants (<i>n</i> = 15:30.9 ± 6.4 S.D.yrs) during driving, we found that T<sub>eardrum</sub> gradually increased from 36.8°C to 38.2°C. It is suggested that the observed rise in T<sub>eardrum</sub> could be due to the G stresses to which the driver's were subjected, as heat production of the body was increased due to the increased muscle activity against G during driving. In addition, we found that the degradation of the local environment around the body (T<sub>a(suit)/max</sub> = 41.0°C, RH<sub>suit/max</sub> = 96.6%, T<sub>a(met)/max</sub> = 41.0°C, RH<sub>met/max</sub> = 93.5%) could be also be one of the major factors. We also found a statistically significant correlation between T<sub>eardrum</sub> and lap-time/lap-time-variability. These results suggest that monitoring of T<sub>eardrum</sub> could be of considerable importance in protecting racing driver's from heat stroke and assessing their performance during motor racing.

収録刊行物

  • 生体医工学 : 日本エム・イー学会誌 = Transactions of the Japanese Society for Medical and Biological Engineering : BME

    生体医工学 : 日本エム・イー学会誌 = Transactions of the Japanese Society for Medical and Biological Engineering : BME 48(3), 269-280, 2010-06-10

    Japanese Society for Medical and Biological Engineering = 生体医工学 : 日本エム・イー学会

参考文献:  21件中 1-21件 を表示

被引用文献:  1件中 1-1件 を表示

各種コード

  • NII論文ID(NAID)
    10031199770
  • NII書誌ID(NCID)
    AA11633569
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    1347443X
  • NDL 記事登録ID
    10777284
  • NDL 雑誌分類
    ZS18(科学技術--医学--医用機械・診断学・検査技術)
  • NDL 請求記号
    Z19-108
  • データ提供元
    CJP書誌  CJP引用  NDL  IR  J-STAGE 
ページトップへ