Objective: This study aims at exploring the relationship between the breathing reserve and altitude in the healthy subject. 目的:为了探讨健康成人呼吸肌肌力、贮备力及其与海拔的关系。
There was no significant difference on maximal ventilation during exercise ( VE) between the two groups, but the breathing reserve ( BR) in COPD group was much lower than that of the controls. 最大通气量(VE)与对照组无差别,但通气储备量(BR)降低;