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生活環境の変化が暑熱耐性と作業能に及ぼす影響

Research Project

Project/Area Number 11J02350
Research Category

Grant-in-Aid for JSPS Fellows

Allocation TypeSingle-year Grants
Section国内
Research Field General human life sciences
Research InstitutionKyushu University

Principal Investigator

WIJAYANTO TITIS (2013)  九州大学, 芸術工学研究院, 特別研究員(PD)

WIJAYANTO Titis (2011-2012)  九州大学, 芸術工学研究院, 特別研究員(DC1)

Project Period (FY) 2011 – 2013
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥1,900,000 (Direct Cost: ¥1,900,000)
Fiscal Year 2013: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 2012: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 2011: ¥700,000 (Direct Cost: ¥700,000)
Keywords暑熱順化 / 暑熱環境適応能 / 体温節反応 / 夏季順化 / 熱帯地在住者 / 体温調節反応 / 申請作業能 / 酸素ヘモグロビン濃度 / 熱帯地住民者 / 精神作業能 / 酸素化ヘモグロビン濃度
Research Abstract

日本に滞在している熱帯アジア人および日本人の暑熱環境下における夏季前後の体温調節反応を比較検討することを目的として、下腿温浴時の熱帯地域および温帯地域在住者の深部温上昇に対する熱放散反応(発汗量, 皮膚血流量)の比較を行った。
【目的】安静時下腿温浴により暑熱負荷を行った際の熱帯地域および温帯地域在住者の熱放散反応の比較を行い、夏季前後の熱放散特性を明らかにした。
【研究実施】「被験者」日本に滞在している健康な熱帯地在住者8名(インドネシア人5名, フィリピン人2名、マレーシア人1名)および温帯地在住者(日本人)の健康な成人男子大学生7名を被験者とした。上記の熱帯アジア居住者は、夏季前実験時において19.9±4.4ヶ月(平均±標準偏差)日本に滞在していた。
「方法」室温28℃, 湿度50%RHに制御した人工気候室において40分間座位安静にし, その後, 60分間の下腿温浴(膝から下を42℃の湯に浸す)を行った. 実験は、平成25年5月~6月(夏季前実験)、8月末~10月上旬(夏季後実験)にわたり実施した。
【結果】本実験においては、夏季前に比べ夏季後は直腸温の上昇は抑制されなかった。また、総発汗量と局所発汗についてもまた夏季後に増大はみられず、平均皮膚温も上昇せず、発汗効率に関しても、夏季後で向上することはなかった。以上の結果より、本実験において日本人、熱帯アジア居住者ともに熱放散反応において夏季馴化の影響は受けなかったと言える。さらに、総発汗量・局所発汗は減少せず、発汗効率も変化がなかったことから、熱帯アジア居住者の脱馴化は、日本の夏の暑熱負荷の影響では、緩和されなかったと考えている。

Current Status of Research Progress
Current Status of Research Progress

1: Research has progressed more than it was originally planned.

Reason

日本人と熱帯アジア人の間における暑熱下の体温調節反応の比較において、熱帯アジア人が温暖な日本に滞在する間にどのように脱馴化するのか、日本の夏季における季節馴化も併せて実験データで検討した例は過去に見あたらないものであった。研究アイデア、実験計画もよく、実験そのものも非常に意欲的であった。

Strategy for Future Research Activity

この成果は6月の日本生理人類学会第70回大会で発表予定であり、その後学術論文として投稿する予定である。

Report

(3 results)
  • 2013 Annual Research Report
  • 2012 Annual Research Report
  • 2011 Annual Research Report
  • Research Products

    (23 results)

All 2014 2013 2012 2011 Other

All Journal Article (9 results) (of which Peer Reviewed: 9 results) Presentation (11 results) Remarks (3 results)

  • [Journal Article] A comparison of hydration effect on body fluid and temperature regulati on between Malaysian and Japanese males exercising at mild dehydrati on in humid heat2014

    • Author(s)
      Hitoshi Wakabayashi, Titis Wijayanto, Joo-Young Lee, Nobuko Hashiguchi, Mohamed Saat and Yutaka Tochihara
    • Journal Title

      J Physiol Anthropol

      Volume: 33(5) Issue: 1 Pages: 1-11

    • DOI

      10.1186/1880-6805-33-5

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 熱帯出生者と温帯出生者の皮膚温度感受性の季節変動2013

    • Author(s)
      虎本紗代, Titis Wijayanto, 前田康彦, 栃原裕
    • Journal Title

      日本生理人類学会誌

      Volume: 18(4) Pages: 153-164

    • NAID

      110009873195

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Passive heat exposure induced by hot water leg immersion increased oxyhemoglobin in pre-frontal cortex to preserve oxygenation and did not contribute to impaired cognitive functioning2012

    • Author(s)
      T Wijayanto, S Toramoto, Y Tochihara
    • Journal Title

      International Journal of Biometeorology

      Volume: 57(4) Issue: 4 Pages: 1-10

    • DOI

      10.1007/s00484-012-0583-1

    • Related Report
      2013 Annual Research Report 2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effects of duration of stay in temperate area on thermoregulatory responses to passive heat exposure in tropical Southeast Asian males residing in Japan2012

    • Author(s)
      T WiJayanto, S Toramoto, H Wakabayashi, Y Tochihara
    • Journal Title

      Journal of Physiological Anthropology

      Volume: 31(1) Issue: 1 Pages: 1-10

    • DOI

      10.1186/1880-6805-31-25

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The use of language to express thermal sensation suggests heat acclimatization by Indonesian people2012

    • Author(s)
      Tochihara Y, Lee JY, Wakabayashi H, Wijayanto T, Bakri I, Parsons K
    • Journal Title

      International Journal of Biometeorology

      Volume: (未定) Issue: 6 Pages: 1055-1064

    • DOI

      10.1007/s00484-011-0519-1

    • Related Report
      2012 Annual Research Report 2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ethnic differences in thermoregulatory responses during resting, passive and active heating : Application of Werner's adaptation model2011

    • Author(s)
      JooYoung Lee, Hitoshi Wakabayashi, Titis Wijayanto, Nobuko Hashiguchi, Mohamed Saat, Yutaka Tochihara
    • Journal Title

      Eur J Appl Physiol

      Volume: (掲載決定) Issue: 12 Pages: 2895-2905

    • DOI

      10.1007/s00421-011-1912-5

    • Year and Date
      2011-03-25
    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The effect of repeated mild cold water immersions on the adaptation of the vasomotor responses2011

    • Author(s)
      Wakabayashi H, Wijayanto T, Kuroki H, Lee JY, Tochihara Y
    • Journal Title

      International Journal of Biometeorology

      Volume: (未定) Issue: 4 Pages: 631-637

    • DOI

      10.1007/s00484-011-0462-1

    • Related Report
      2012 Annual Research Report 2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Comparison of thermoregulatory responses to heat between Malaysian and Japanese males during leg immersion2011

    • Author(s)
      Titis Wijayanto; Hitoshi Wakabayashi, Joo-Young Lee; Nobuko Hashiguchi; Mohamed Saat, Yutaka Tochihara
    • Journal Title

      Int.J.Biometeorol

      Volume: 55(4) Pages: 491-500

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Comparison of heat dissipation response between Malaysian and Japanese males during exercise in humid heat stress2011

    • Author(s)
      Hitoshi Wakabayashi, Titis Wijayanto; Joo-Young Lee; Nobuko Hashiguchi; Mohamed Saat, Yutaka Tochihara
    • Journal Title

      Int.J.Biometeorol

      Volume: 55(4) Pages: 509-517

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Presentation] Thermoregulatory responses to heat of Southeast Asian males residing in Japan2013

    • Author(s)
      Titis Wijayanto
    • Organizer
      International Symposium on the honor of the retirement of Professor Yutaka Tochihara
    • Place of Presentation
      九州大学(福岡市)(招待講演)
    • Year and Date
      2013-02-23
    • Related Report
      2012 Annual Research Report
  • [Presentation] Mental performance during passive heat exposure in Japanese and Tropical Asian males2013

    • Author(s)
      Titis Wijayanto
    • Organizer
      日本生理人類学会第68回大会
    • Place of Presentation
      金沢大学(金沢市)
    • Related Report
      2013 Annual Research Report
  • [Presentation] 日本に住んでいる熱帯アジア人と日本人の暑熱暴露時の精神作業能2013

    • Author(s)
      Titis Wijayanto
    • Organizer
      第37回人間―生活環境系シンポジウム
    • Place of Presentation
      神戸大学(神戸市)
    • Related Report
      2013 Annual Research Report
  • [Presentation] Effects of dura tion of stay in Japan on sweating responses to hot water leg immersion in tropical Asian males2013

    • Author(s)
      Titis Wijayanto
    • Organizer
      The XV International Conference on Environmental Ergonomics
    • Place of Presentation
      Queens town, New Zealand
    • Related Report
      2012 Annual Research Report
  • [Presentation] Thermoregulatory responses to hot water leg immersion of tropical Asian males and Japanese males in summer and winter2013

    • Author(s)
      Titis Wijayanto
    • Organizer
      The XV International Conference on Environmental Ergonomics
    • Place of Presentation
      Queens town, New Zealand
    • Related Report
      2012 Annual Research Report
  • [Presentation] Decay of heat accimmersion in Trop imatization in sweating responses to hot water legcal Asian males residing in Japan2012

    • Author(s)
      Titis ffijayanto
    • Organizer
      日本生理人類学会第67回大会
    • Place of Presentation
      首都大学東京(東京都荒川区)
    • Related Report
      2012 Annual Research Report
  • [Presentation] Seasonal ef lects on thermoregulatory responses during leg immersion in Japanese and tropical Asian males residing in Japan2012

    • Author(s)
      Titis Wijayanto
    • Organizer
      日本生理人類学会第66回大会
    • Place of Presentation
      長崎大学医学部(長崎市)
    • Related Report
      2012 Annual Research Report
  • [Presentation] Mental performance and pre-frontal cortex oxygenation during hot water leg immersion in Tropical Asian males residing in Japan2011

    • Author(s)
      Titis Wijayanto
    • Organizer
      日本生理人類学会第65回大会
    • Place of Presentation
      関西大学100周年記念会館(吹田市)
    • Related Report
      2011 Annual Research Report
  • [Presentation] Physiological responses during hot water leg immersion of tropical Asian males residing in Japan2011

    • Author(s)
      Titis Wijayanto
    • Organizer
      第50回日本生気象学会大会(京都)
    • Place of Presentation
      京都女子大学J校舎
    • Related Report
      2011 Annual Research Report
  • [Presentation] Evaluation of heat exposure effects on cognitive function by analyzing oxy-hemoglobin changes in the pre-frontal cortical area2011

    • Author(s)
      Titis Wijayanto
    • Organizer
      XIV International Conference on Environmental Ergonomics, 2011
    • Place of Presentation
      Nafplio, Greece
    • Related Report
      2011 Annual Research Report
  • [Presentation] Thermoregulatory responses of Malaysian and Japanese males during leg immersion in hot water2011

    • Author(s)
      Titis Wijayanto
    • Organizer
      日本生理人類学会第64回大会
    • Place of Presentation
      九州大学大橋キャンパス(福岡市)
    • Related Report
      2011 Annual Research Report
  • [Remarks]

    • URL

      http://www.design.kyushu-u.ac.jp/id/ninkou/tochihara/

    • Related Report
      2013 Annual Research Report
  • [Remarks]

    • URL

      http://www.design.kyushu-u.ac.jp/id/ninkou/tochihara/

    • Related Report
      2012 Annual Research Report
  • [Remarks]

    • URL

      http://www.design.kyushu-u.ac.jp/id/ninkou/tochihara/

    • Related Report
      2011 Annual Research Report

URL: 

Published: 2011-12-12   Modified: 2024-03-26  

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