穿戴防毒装具热适应锻炼提高热负荷限度的初步研究

Preliminary Study of Heat Adaptive Training with Wearing Gas Protection Equipment to Improve Limit of Heat Load

19名健康战士按其反应分为二组,甲组9人,热锻炼后直肠温度可达38.90～39.39℃,乙组10人,热锻炼后直肠温度可达38.40～38.81℃。结果表明高湿热锻炼提高机体热负荷耐受能力和体力,甲组较乙组提高更多,能坚持至直肠温度达40°,心率170bpm,平均体温39.2℃、BHSI389kJ/m^2、PSI5.4,出汗率增加2.4ml/min 行军时速明显增加(自83.5增至91.0m/min)。而乙组热负荷耐受能力提高不多,出汗率减少1.7ml/min,行军速度未增快。但尿常规变化和不适感二组都明显改善。

Nineteen healthy soldiers wearing gas protection equipmentsreceived heat training.They were divided into Group A(n=9) andGroup B(n=10).After the heat training the rectal temperaturesof A,B group reached 38.90℃-39.39℃ and 38.40℃-38.89℃,respec-tively.The results showed that training in intense heat and humid-ity could improve physical heat resistance and strength.GroupA was improved more than Group B Group A could keep on exercis-ing until the rectal temperature was 40℃,heart rate went up to170bpm,the average body temperature was 39.2℃,BHSI was 389 kj/m^2.PSI was 5.4,the sweat rate increased by 2.4 ml/min,and thespeed of walking increased markedly (from 83.5 m/min to 91.0 m/min);while in Group B the heat resistance did not increased much,the sweat rate decreased by 1.7 ml/min,and the speed of walkingdid not increased.Nevertheless,changes in routine examination ofurine and sensation of discomfort were reducded markedly in bothgroups.