目的采用经典热习服训练方法复合缺氧训练以探索提升机体耐热能力的有效方法。方法在温度33℃以上、湿度大于70%的湿热条件下,以2018年某部队60名经严格筛查的男性健康志愿者为对象,进行为期12 d的热习服训练和测试。60名志愿者分为3组...目的采用经典热习服训练方法复合缺氧训练以探索提升机体耐热能力的有效方法。方法在温度33℃以上、湿度大于70%的湿热条件下,以2018年某部队60名经严格筛查的男性健康志愿者为对象,进行为期12 d的热习服训练和测试。60名志愿者分为3组,分别为对照组、热习服组和缺氧训练复合热习服组,每组20名。采集热习服前后耳温、心率、出汗量、心肺功能、综合感受评分、生理紧张指数(physiological strain index,PSI)、最大摄氧量(maximal oxygen uptake, VO2max)、心率为170次/min时的体力工作能力(physical work capacity at heart rate of 170 beats per minute, PWC170)进行耐热能力的评估。结果与对照组相比,热习服组以及缺氧复合热习服组基础耳温、耐热测试后的耳温均显著下降(P<0.05),基础心率以及耐热测试后的心率均显著下降(P<0.05);PSI与呼吸频率也显著降低(P<0.05);出汗量、VO2max、PWC170、最大心输出量、氧耗量/最大心率、最大二氧化碳排出量、最大肺通气量均显著增加(P<0.05)。缺氧复合热习服组在耐热测试后的心率与耳温均低于热习服组(P<0.05),并且PSI与呼吸频率也出现显著降低(P<0.05)。与热习服组相比,缺氧复合热习服组的出汗量、VO2max、PWC170、最大心输出量、氧耗量/最大心率、最大二氧化碳排出量、最大肺通气量均显著增加(P<0.05)。结论在经典热习服训练基础上增加耐缺氧训练,能更有效地促进热习服的形成。展开更多
Objective This study was aimed to explore the physiological changes and the effect of heat acclimation training via a randomized control trial study.Methods Forty healthy male volunteers were chosen and divided into e...Objective This study was aimed to explore the physiological changes and the effect of heat acclimation training via a randomized control trial study.Methods Forty healthy male volunteers were chosen and divided into experimental group and control group randomly.Those in experimental group received heat acclimation training including but not limited to meditation,unarmed run,yoga,and stepping in hot lab environment.And then,subjective feeling,rectal temperature,average skin temperature,and sweat electrolytes concentration were detected in order to describe their physiological changes.Before and after the training,both groups received some tests and their 3 000 m run-race time,nervous reaction time and subjective perception scores were recorded to evaluate the effect of acclimation training.Results(1) There was no difference in 3 000 m between the 2 groups in the same environment.Subjects' 3 000 m race time in experimental group was obviously shortened than that in control group in room temperature environment(t=2.326,P<0.05).And subjects' 3 000 m race time in experimental group was obviously shortened than that in control group in hot-humid environment(t=4.518,P<0.01).(2) Subjects' reaction time(RT) in experimental group was shortened than that in control group in room temperature environment(Z=11.258,P<0.05).And Subjects' RT in experimental group was sharply shortened than that in control group in hot-humid environment(Z=6.519,P<0.01).(3) No difference between the experimental and control groups was observed in subjective perception score(SPS) in room temperature environment.But subjects' SPS in experimental group was obviously lowered than that in control group and in hot-humid environment(t=17.958,P<0.01).(4)Anal temperature(AT) was lowered during training,while the change of mean skin temperature(MST) was not significant.Sweat sodium concentration(SSC) was lowered during training.SPS continued to decrease and entered plateau on the 13 th day after training.(5) After acclimation training,the working capacity of展开更多
文摘目的采用经典热习服训练方法复合缺氧训练以探索提升机体耐热能力的有效方法。方法在温度33℃以上、湿度大于70%的湿热条件下,以2018年某部队60名经严格筛查的男性健康志愿者为对象,进行为期12 d的热习服训练和测试。60名志愿者分为3组,分别为对照组、热习服组和缺氧训练复合热习服组,每组20名。采集热习服前后耳温、心率、出汗量、心肺功能、综合感受评分、生理紧张指数(physiological strain index,PSI)、最大摄氧量(maximal oxygen uptake, VO2max)、心率为170次/min时的体力工作能力(physical work capacity at heart rate of 170 beats per minute, PWC170)进行耐热能力的评估。结果与对照组相比,热习服组以及缺氧复合热习服组基础耳温、耐热测试后的耳温均显著下降(P<0.05),基础心率以及耐热测试后的心率均显著下降(P<0.05);PSI与呼吸频率也显著降低(P<0.05);出汗量、VO2max、PWC170、最大心输出量、氧耗量/最大心率、最大二氧化碳排出量、最大肺通气量均显著增加(P<0.05)。缺氧复合热习服组在耐热测试后的心率与耳温均低于热习服组(P<0.05),并且PSI与呼吸频率也出现显著降低(P<0.05)。与热习服组相比,缺氧复合热习服组的出汗量、VO2max、PWC170、最大心输出量、氧耗量/最大心率、最大二氧化碳排出量、最大肺通气量均显著增加(P<0.05)。结论在经典热习服训练基础上增加耐缺氧训练,能更有效地促进热习服的形成。
文摘Objective This study was aimed to explore the physiological changes and the effect of heat acclimation training via a randomized control trial study.Methods Forty healthy male volunteers were chosen and divided into experimental group and control group randomly.Those in experimental group received heat acclimation training including but not limited to meditation,unarmed run,yoga,and stepping in hot lab environment.And then,subjective feeling,rectal temperature,average skin temperature,and sweat electrolytes concentration were detected in order to describe their physiological changes.Before and after the training,both groups received some tests and their 3 000 m run-race time,nervous reaction time and subjective perception scores were recorded to evaluate the effect of acclimation training.Results(1) There was no difference in 3 000 m between the 2 groups in the same environment.Subjects' 3 000 m race time in experimental group was obviously shortened than that in control group in room temperature environment(t=2.326,P<0.05).And subjects' 3 000 m race time in experimental group was obviously shortened than that in control group in hot-humid environment(t=4.518,P<0.01).(2) Subjects' reaction time(RT) in experimental group was shortened than that in control group in room temperature environment(Z=11.258,P<0.05).And Subjects' RT in experimental group was sharply shortened than that in control group in hot-humid environment(Z=6.519,P<0.01).(3) No difference between the experimental and control groups was observed in subjective perception score(SPS) in room temperature environment.But subjects' SPS in experimental group was obviously lowered than that in control group and in hot-humid environment(t=17.958,P<0.01).(4)Anal temperature(AT) was lowered during training,while the change of mean skin temperature(MST) was not significant.Sweat sodium concentration(SSC) was lowered during training.SPS continued to decrease and entered plateau on the 13 th day after training.(5) After acclimation training,the working capacity of
