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

儿童运动时体温调节的热生理学研究：基于体能训练

• 批准号: 07807012
• 负责人: TORII Masafumi
• 金额: $ 0.83万
• 依托单位: Kyushu Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1996
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07807012/
• 关键词: temperature regulatory capacity; development of physiological function; thermal balance; heat loss; submaximal exercise

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

1.本研究的目的是比较儿童与大学生对运动的体温调节反应，旨在根据儿童的体育锻炼训练，探讨儿童对两种不同工作强度运动的体温调节反应特征。2.5名健康男童（11岁）和5名大学生（20岁）在大约最大摄氧量（VO_<2max>）30%和60%的工作强度下进行自行车运动。 热中性（25°C，相对湿度 50%）。测量全身出汗率（SR）、直肠温度（T_<re>）、平均皮肤温度（T_<sk>）和平均身体温度（T_b）、摄氧量（VO_2）和心率（HR）。我们估计了休息时和运动时的热平衡。3.在30%和60%VO_<2max>运动期间，儿童的SR显着低于成年男性。在两种工作条件下，儿童的HR、T_<re>和T_b均显着高于成年男性。4.作为产热指标的VO_2在成年男性和工作强度上均无显着差异。在较高的工作强度下，与成年男性相比，在任何给定的 T_<re> 和 T_b 下，儿童的 SR 均较低。 5. 当将 T_b 和 T_<re> 与运动期间的 SR 作图时，两组均发现显着正相关，但 SR 与 T_<sk> 关系在儿童中不显着。协方差分析揭示了儿童和成年男性在两种工作强度下的回归线截距之间存在显着差异。数据显示，儿童和成年男性运动期间，SR 与 T_b 或 T_<re> 关系存在平行移动（向右）。数据显示儿童在运动过程中SR与T_b或T_<re>的关系存在平行移动(右移)。6.综上所述,儿童在较高工作强度运动时的散热能力与成年男性不同。我们要考虑为预科男生制定体育锻炼计划 Less

项目成果

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)

Torii,M.、Nakayama,H.、Sasaki,T.：“锻炼男性在早晨升高和晚上下降阶段内部温度的体温调节。”

Torii,M.: "Temperature regulation during exercise in Children" 1997 Symposium on Thernal Physiology. 8-12 July 1997,Copenhagen,Denmark. (予定).

Torii, M.：“儿童运动期间的温度调节”1997 年热生理学研讨会，1997 年 7 月 8-12 日，丹麦哥本哈根（计划中）。

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)

Torii,M.等人：“运动期间的热平衡调节：昼夜节律和季节性”环境人体工程学：最新进展和新前沿，载于：Y.Shapiro 等人（编辑）-Ferund Publishing House.Ltd.（伦敦）

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-

Torii, M. 和 Miyabayashi T.：运动期间的热平衡调节：昼夜节律和季节性。

Torii, M.: "Temperature regulation during exercise in children" 1997 Symposium on Thermal Physiology. 8-12 July 1997, Copenhagen, Denmark. (Accepted).

Torii, M.：“儿童运动期间的温度调节”1997 年热生理学研讨会。