VVI

1.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(VVIR)与无频率(VVI)态下做800米快速行走及症记和卧位踏车运动评价。