Objective To explore the effect of moderate-intensity intermittent aerobic exercise training on cardiopulmonary function in elderly patients after percutaneous coronary intervention（PCI） for coronary heart disease.Methods One hundred and thirty elderly patients with coronary heart disease who were admitted to our hospital from September 2018 to September 2019 were selected as the research object

and they were divided into an observation group（n=66） and a control group（n=65）

the control group was given low-intensity intermittent aerobic exercise training

and the observation group was given moderate-intensity intermittent aerobic

exercise training. After intervention

the heart function and lung function indexes of the two groups were compared. Results After the intervention

the anaerobic min（AT） comparison（p>0.05）

the peak oxygen uptake（VO

2

peak）

peak power（PP）

left ventricular ejection fraction（LVEF）

exercise duration（ED） were higher Control group（p

<

0.05）; VO

2

@peak（peak oxygen uptake）

VO

2

@AT（anaerobic threshold oxygen uptake）

WR@peak（peak load）

O

2

/puls（oxygen pulse）

METs@peak（peak metabolic equivalent） value was higher than the control group（p

<

0.05）. Conclusions Moderate-intensity intermittent aerobic exercise training can significantly improve the stroke volume of elderly patients after coronary heart disease PCI

improve oxygen supply capacity

coordinate the whole body muscle group

improve metabolism

and enhance cardiopulmonary function.