Hello,
It is important to keep exercise fun, enjoyable and pain free. I recommend talking to your physician about an exercise program that would be good for you. Many people I work with walk, and walking is low impact. You can walk with a support person, and walking is convenient. All too often people think if I am walking I am not doing enough. But surveys that look at what people do long term often identify walking as the number one form of physical activity. Water programs, either water walking or water aerobics have also been recommended to many people I have worked with, so also ask your physician about water activity programs. Here is a link to barriers to exercise that might be helpful: http://www.mayoclinic.org/healthy-lifestyle/fitness/in-depth/fitness/art-20045099