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A thermophysiological study on temperature regulation during exercise in children : based on their physical training

Research Project

Project/Area Number 07807012
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Environmental physiology (including Physical medicine and Nutritional physiology)
Research InstitutionKyushu Institute of Technology

Principal Investigator

TORII Masafumi  Department of Engineering, Kyushu Associate Institute of Technology professor, 工学部, 助教授 (00207664)

Project Period (FY) 1995 – 1996
Project Status Completed (Fiscal Year 1996)
Budget Amount *help
¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 1996: ¥200,000 (Direct Cost: ¥200,000)
Fiscal Year 1995: ¥1,100,000 (Direct Cost: ¥1,100,000)
Keywordstemperature regulatory capacity / development of physiological function / thermal balance / heat loss / submaximal exercise
Research Abstract

1.The purpose of the present study was to compare the thermoregulatory responses to exercise of children with those of college students, aiming to examine the characteristics of thermoregulatory responses of children to exercise at two different work intensities, based on their physical exercise training.
2.Five healthy school boys (11 years) and five college students (20 years) conducted bicycle exercise at work intensities of approximate 30 and 60% of maximal oxygen uptake (VO_<2max>) at thermoneutrality (25゚C with a relative humidity of 50%). Whole-body sweat rate (SR), rectal (T_<re>), mean skin (T_<sk>) and mean body (T_b) temperatures, oxygen uptake (VO_2), and heart rate (HR) were measured. We estimated heat balance at rest and during exercise.
3.During exercise at 30 and 60% VO_<2max>, SR was significantly lower in children than in the adult men. HR,T_<re> and T_b were significantly higher in the children than in the adult men in both work conditions.
4.There were no significant d … More ifferences in VO_2, as an index of heat production, in both adult men and work intensities. At higher work intensity, lower SR in children was observed at any given T_<re> and T_b, as compared with adult men.
5.When T_b and T_<re> were plotted against SR during exercise, the positive significant correlations were found in both groups, except SR vs. T_<sk> relation which was not significant in children. Analysis co-variance revealed a significant difference of the intercept between the regression lines of children and adult men in both work intensities. The data showed that there was a parallel shift (rightward) in the SR to T_b or T_<re> relationship during exercise in children and adult men. The data showed that there was a parallel shift (rightward) in the SR to T_b or T_<re> relationship during exercise in the children.
6.In conclusion, the children's ability to dissipate heat during exercise at higher work intensity is different from that of adult men. We are to consider a physical exercise planning for preadrescet school boys Less

Report

(3 results)
  • 1996 Annual Research Report   Final Research Report Summary
  • 1995 Annual Research Report
  • Research Products

    (13 results)

All Other

All Publications (13 results)

  • [Publications] Torii,M.et al.: "Thermoregulation of exercising men in the morning rise and evening fall phases of internal temperature." Br.J.Sports Med.,. 29(2):. 113-120 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Torii,M.et al.: "Heat balance ragulation during exercise : circadianity and seasonality" Environmental Ergonomics : Recent Progress and New Frontiers,In : Y.Shapiro et al.(Eds.)-Ferund Publishing House.Ltd.(London). 437-432 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Torii, M.: "Temperature regulation in exercising children" Annual Meeting of Exercise-thermoregulation, Fukushima. (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Torii, M.: "Exercise-thermoregulation in children and adults." 1st International Symposium "Medicina Sportiva '96", The XXII Congress of the Polish Society of Sports Medicine, 15-18 September, 1996, Krakow, Poland. 80

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Torii, M.: "Temperature regulation during exercise in children" 1997 Symposium on Thermal Physiology. 8-12 July 1997, Copenhagen, Denmark. (Accepted).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Torii, M., Nakayama, H., Sasaki, T.: Thermoregulation of exercising men in the morning rise and evening fall phases of internal temperature.Br.J.Sports Med., 29 (2), 113-120 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Torii, M.and Miyabayashi T.: Heat balance regulation during exercise : circadianity and seasonality. In : Y.Shapiro, D.M.Moran, and Y.Epstein (Eds.). Environmental Ergonomics : Recent Progress and New Frontiers, Freund Publishing House.Ltd. : London, 437-432 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 鳥井正史: "学童の運動時体温調節反応." 運動と体温研究会,1995.

    • Related Report
      1996 Annual Research Report
  • [Publications] Torii,M.,Nakayama,H.,Sasaki,T.: "Thermoregulation of exercising men in the morning rise and evening fall of phases internal temperature." Br.J.Sports Med.,. 29(2). 113-120 (1995)

    • Related Report
      1996 Annual Research Report
  • [Publications] Torii,M.: "Exercise-thermoregulation in children and adults." Ist International Syposium “Medicina Sportiva '96",The XXII Congress of the Polish Society of Sports Medicine,15-18 September,1996,Krakow,Poland. (Abstrac,). 80

    • Related Report
      1996 Annual Research Report
  • [Publications] Torii,M.and Miyabayashi T.: "Heat balance ragulation during exercise : circadianity and seasonality" In : Y.Shapiro,D.M.Moran,and Y.Epstein(Eds.). Environmental Ergonomics : Recent Progress and New Frontiers,Freund Publishing House. Ltd.: London,. 437 432, (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Torii,M.: "Temperature regulation during exercise in Children" 1997 Symposium on Thernal Physiology. 8-12 July 1997,Copenhagen,Denmark. (予定).

    • Related Report
      1996 Annual Research Report
  • [Publications] Torii,M.: "Heat balance regulation during exercise : circadianity and seasonality" Proceedings of 7th InternationalConference on Environmental Ergonomics. (予定).

    • Related Report
      1995 Annual Research Report

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Published: 1995-04-01   Modified: 2016-04-21  

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