低浓度预吸氧对3651m海拔新兵体能PWC_(170)值的影响  

Effect of low concentration preoxygenation on the new recruits arriving at a height of 3651m above sea level

作　　者：舒勤[1] 唐红英[2] 张民[2] 谭静[2] 汪涛[3] 柏维尧 朱京慈[2] 

机构地区：[1]第三军医大学护理学院野战护理学教研室 [2]第三军医大学护理学院基础护理学教研室 [3]第三军医大学护理学院心理学教研室 [4]解放军77619部队卫生队

出　　处：《解放军医学杂志》2012年第12期1160-1164,共5页Medical Journal of Chinese People's Liberation Army

基　　金：全军"十一五"医药卫生科研基金面上项目(06MA202)~~

摘　　要：目的明确低浓度预吸氧对入藏新兵心率170次/min时的体力工作能力(PWC170)的影响,探讨应对方式与入藏新兵体能水平的相关性。方法以2009年12月进驻海拔3651m的39名入藏新兵为研究对象,随机分为实验一组(n=12)、实验二组(n=12)和对照组(n=15),实验一组和二组分别给予1L/min和2L/min的氧气吸入,每天1次,每次持续30min,共3d,对照组不予吸氧。每日吸氧完成后即刻采用踏阶试验测定受试者PWC170值以评定其体能水平,共获得3d的数据。采用《体能训练应对量表》测量受试者的应对方式,并与98名入藏2年以上老兵的测试结果进行比较。结果实验一组和实验二组基础PWC170值无显著差异(P>0.05),但均明显高于对照组,差异有统计学意义(P<0.05)。入藏新兵实验组、对照组及老兵对照组的应对方式无显著差异(P>0.05);新兵实验组"主动应对"因子与基础PWC170值、"情绪管理"因子与第二日PWC170值呈显著正相关(r=0.329、0.344,P<0.05)。结论低浓度预吸氧可能有助于提升入藏新兵体能水平。体能训练应对方式中的"主动应对"因子与基础体能有一定相关性,而"情绪管理"因子与体能水平的保持有关。Objective To evaluate the effect of low-concentration preoxygenation on physical work capacity with a heart rate of 170 beat per minute （PWC170） in recruits arrived on Qinghai-Tibet Plateau （3651m height above sea level）, and investigate the possible correlation between new recruits＇ coping style and physical work capacity. Methods Thirty-nine recruits coming from plains （799m or 620m height above sea level） were involved in our study. They were randomly divided into 3 groups： experimental group Ⅰ （n=12）, experimental group Ⅱ （n=12）, and control group （n=15）. The group Ⅰ had 1L/min low concentration preoxygenation for 30min, and group Ⅱ had 2L/min for 30min, once a day for 3 days. No preoxygenation in control group. The new recruits＇s PWC170 values were measured by stepping stairs for evaluating their physical ability, and the new recruits＇s coping responses were investigated with ＂Physical Training Coping Scale＂, and then those data compared with these of 98 soldiers stationed in Tibet （senior soldier group, stationed in Tibet for at least 2 years）. Results Each basic PWC170 values showed no significant difference between group Ⅰ and Ⅱ（P〉0.05）. Each basic PWC170 was significantly higher in the experimental groups Ⅰ and Ⅱ than in control group （P〈0.05）. As for the coping style, there was no significant difference between experimental group, control group, and senior soldier group （P〉0.05）. Correlation analysis showed that there was a significant positive correlation between the ＂active response＂ factor and basic PWC170 value, and between ＂emotional management＂ factor and PWC170 value on second day between the two experimental groups （r=0.329 and 0.344 respectively, P〈0.05）. There was also a significant correlation between PWC170 values （day 1, day 2 and day 3）, and the correlation coefficients were between 0.570 and 0.594 （P〈0.01）. Conclusions Low concentration preoxygenation possibly can improve the physical fitness

关 键 词：预吸氧 身体素质 适应 心理学 

分 类 号：R821.53[医药卫生—临床医学]