高原驻训官兵作业疲劳状态调查及脱习服措施的研究

目的研究高原驻训官兵作业疲劳状态及下高原脱习服对疲劳状态的影响。方法选取赴海拔4000 m高原驻训部队300名,随机分为实验组和对照组,实验组在返回平原后进行脱习服训练。在上高原前10天,驻高原第10天、第30天、第90天、第150天及返回平原后第3天、第15天分别对两组进行作业疲劳症状自评量表分析。结果驻高原第30天与驻高原第10天相比较疲劳症状各因子得分均有降低(P0.05),尤其表现在困倦感、不快感、视觉疲劳感和总分上有显著降低(P0.01);驻高原第90天、第150天与驻高原第30天相比,各因子得分均有明显降低(P0.001);驻高原第30天与上高原前10天的量表总分接近。高原驻训部队返回平原脱习服干预实验组在返回平原后第15天较第3天疲劳状况均有改善,尤其在不快感、怠倦感和视觉疲劳感上表现明显(P0.01)。结论随着高原驻训时间延长,机体对高原逐渐适应,下高原后脱习服措施能够改善高原驻训官兵疲劳情况,对于促进高原驻训官兵恢复军事作用能力具有积极意义。

Work fatigue of plateau encamping soldiers and effect of plateau de-acclimatization on fatigue state

Objective To study work fatigue of plateau encamping soldiers and the effect of plateau de-acclimatization on their fatigue.Methods Three hundred soldiers encamped at the altitude of 4000 m were selected and randomly divided into the experimental group and the control group.The experimental group was de-acclimatized upon their return to the plains.Self-rating scales of work fatigue were used in both groups 10 d before departure for the plateau,10 d 、30 d 、90 d、150 d after their arrival at the plateau and 3 d,15 d after their return to the plains,respectively.Results The plateau encamping soldiers had a reduced score from each factor of fatigue 30 d after therir arrival at the plateau compared with 10 d(P＜0.05),especially in the scores of sleepiness,discomfort,and sensory fatigue(P＜0.01).The score of these soldiers from each factor of fatigue was significantly decreased 90 d and 150 d after therir arrival at the plateau compared to 30 d (P＜0.001).The experimental intervention group had improved indexes of fatigue 15 days after their return to the plains compared with 3 d(P＜0.05),especially in emotional disturbance,discomfort and sensory fatigue(P＜0.01).Conclusion With the extension of the plateau encamping time,the body can gradually adapt to the plateau.De-acclimatization measures can help alleviate the fatigue of soldiers after leaving the plateau,which can contribute to the resumption of the soldiers' ability to engage in military operations.