日本人小児4-6歳の体水分の代謝回転に及ぼす温熱環境の影響  [in Japanese] Effect of thermal environment on water turnover of Japanese children aged 4 to 6 years  [in Japanese]

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Author(s)

Abstract

本研究では,4-6歳の日本人小児86名を対象として,温熱環境が小児の体水分の代謝回転(water turnover,WT)に与える影響を検討することを目的とした.我々は,夏日に測定された32名のWTと冬日に測定された54名のWTを比較した.WTの測定は宮崎県および岩手県で,それぞれ春と秋から初冬にかけて行った.参加児に重水(99.9%)を投与し,その後6日間の尿中重水素濃度の減少から減衰率(Kh)を求めた.総体水分量(total body water,TBW)に対する割合で表現されたWT(%TBW)は,Khに100を乗じることで算出した.冬日群と比較して,夏日群の方がWTが約17%高かった.本研究の結果は,温熱環境が小児のWTの個人差に寄与する要因の1つであることを示唆している.

This study examined the effect of thermal environment on water turnover (WT) in 86 Japanese children aged 4 to 6 years. We compared WT between 32 children on summer day and 54 on winter day. WT was measured in spring in Miyazaki and from the end of fall to the beginning of winter in Akita prefecture, respectively. Deuterium oxide (99.9%) was administered and the elimination rate (kh) over 6 days was calculated. WT, expressed as a percentage of total body water (%TBW), was calculated as a product of kd and 100. WT (%TBW) was 17% higher on a summer day than on a winter day. This result suggests that thermal environment is among factors which contribute to the individual differences in WT in children.

Journal

  • Journal of human and living environment

    Journal of human and living environment 16(1), 37-42, 2009

    Japanese Society of Human-Environment System

References:  20

Codes

  • NII Article ID (NAID)
    110008441766
  • NII NACSIS-CAT ID (NCID)
    AA11443337
  • Text Lang
    JPN
  • Article Type
    ART
  • ISSN
    1340-7694
  • NDL Article ID
    10384791
  • NDL Source Classification
    ZE5(社会・労働--社会問題・社会保障)
  • NDL Call No.
    Z6-B695
  • Data Source
    CJP  NDL  NII-ELS  J-STAGE 
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