中文摘要：

为探索草原公路设计的新方法运用人体生理指标来客观评价现有草原公路的合理性，并研究对驾驶员安全行车的科学管理问题。选取具有代表性的S101赛罕塔拉一满都拉图段进行草原公路的实驾试验，采用时域分析与频域分析相结合的方法获得5名驾驶员腰部竖棘肌积分肌电值（IEMG）、平均功率频率（MPF）的变化特征。探讨草原公路行车驾驶员腰部竖棘肌的IEMG与MPF的变化趋势以及性别对驾驶疲劳的影响。结果表明：草原公路行车约60min后，男女驾驶员的IEMG与MPF均呈现不可恢复的深度下降趋势，驾驶员腰部疲劳加重，难以缓解；女性驾驶员的IEMG下降程度以及MPF的传播速度均高于男性，男女驾驶员腰部竖棘肌抵抗疲劳的能力不同，女性的竖棘肌抵抗疲劳能力强于男性。

英文摘要：

For the sake of exploring a new method for designing grassland highways, human physiological indicators were used to objectively evaluate rationality of existing grassland highways. Scientific management of driverg safe driving was studied. The sectior of highway S101 from Saihantala to Mandulatu was selected as experimental road. Five drivers＂ shaft spinal＇s waist IEMG and MPF characteristics were acquired by means of combination of time domain and frequency domain analysis. Variation trends of MPF and women drivers have a deep irrevocable decline, that driver＇s waist fatigue is aggravated, which is diffi- cult to alleviate. The loss of IEMG and velocity of MPF of women drivers＇are higher than that of men driv- ers, that men drivers are different from women drives in ability to resist shaft spinals waist fatigue, and women＇s ability is stronger.