热环境下战士越野作训的生理反应特点

CHARACTERISTICS OF PHYSIOLOGICAL RESPONSE OF SOLDIERS DURING CROSS-COUNTRY TRAINING IN HOT ENVIRONMENTS

本文报告了在平均湿黑球温度为２８．２、２７．１和２６．５℃三种热环境下，分别进行５ｋｍ轻装（１）、１２ｋｍ轻装（Ⅱ）和５ｋｍ收放线（Ⅲ）作训时的最大生理反应和完成时间。结果显示：（１）强度劳动时，Ⅰ、Ⅱ、Ⅲ组平均完成时间分别为３１，７９和２７ｍｉｎ；（２）实验结束时，Ⅰ、Ⅱ、Ⅲ组的心率分别为１６３±１３ｂ／ｍｉｎ、１８１±１３ｂ／ｍｉｎ和１７５±１２ｂ／ｍｉｎ；肛温分别为：３８．３±０．６℃、３９．７±０．６℃和３９．１±０．７℃；出汗量分别为１．６７１±０．３０７Ｌ／ｈ，１．５１６±０．３０１Ｌ／ｈ和２．４４１±０．５６５Ｌ／ｈ分析表明：Ⅱ、Ⅲ组分别有７０％和４０％以上的人超过生理耐受极限。

he maximal physiological responses and finishing times of soldiers during the training with light packs at 5km(I),12km(II) and for tightening up and throwing line at 5km(III) in three hot environments,averaging Wet Globe Temperature (WGT) 28.2,27.1 and 26.5℃,were reported。The results showed that(1)the average finishing times vrere 31,79 and27 min for I,II and III groiip respectively; (2) at the end of experiments,HR,Tre and sweating rate were 163±13b/min,38.3±0.6℃,1.671±0.307L/hand 181±13b/min,39.7±0.6℃,1.516±0.301 L/h and 175±12b/min,39.1±0.7℃,2.441 ±0.565 L/h for I,II and III groups respectively.More than 70%and 40%of the subjects in II and III grotips exceeded respectively the physiolo-gical tolerable limit.