<s>[INST] i am 53 years female.i got angioplasty done on 25th sep 2010.one stent is inserted in my left anterior descending artery (2.75x23mm cypher),due to 56% blockage.3 weeks have been passed,i feel a little irritation right on the place of stent.and a little haviness upper to heart.i want to ask what type of exercise can i do and how much.i had habit of 30 minutes moderate walk before angiopalsty.can i return now to my previous routine.how much walk i should do daily in terms of duration and speed? [/INST] Hi there After going through your query I understand your concern. I would like to tell you that physical activity is important to all the cardiac patients and brisk walk can be done if you don't have any symptoms on exertion. But if you are experiencing a chest pain then it should be evaluated first. So It's recommended for you to get an ECG and Echocardiography done and consult with your cardiologist with reports. Kind Regards </s>