浅议高原习服与高原运动表现

Discussion on Acclimatization to High Altitude and High Altitude Exercise Performance

进入高原,低压低氧会给人体带来严重的不利影响。机体通过增加肺通气和血液中血红蛋白浓度来提高动脉氧含量,从而促使人体产生高原习服。但是提升的动脉氧含量并不能有效提高进入高原后下降的最大运动能力,肌肉代谢转向更低的氧需求可能在这方面扮演重要角色。

After ascent to high altitude,hypobaric hypoxia has a severe adverse effect on human body.As response to hypobaric hypoxia,pulmonary ventilation and blood haemoglobin concentration are elevated,which increases arterial oxygen content and therefore attributes to acclimatization to high altitude.However,Increased arterial oxygen content does not improve decreased maximal exercise performance at altitude,which may be closely related to a decreased oxygen demand in muscle metabolism.