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例老年患者别在具频率应答(VVIR)与无频率应答(VVI)
态下做800米快速行走及症
和半卧位踏
运动评价。