Methods Eight hundred metres fast walking on a flat ground and semisupine cycling exercise test were performed in 18 patients randomly programmed to VVIR or VVI pacing mode and compared.
方法18例老年患者分别在具频率应(VVIR)与无频率应
(VVI)
下做800米快速行走及症
记分和半卧位踏
运动评价。