After my aortic valve replacement surgery a couple of years ago due to my congenital defect I finished my last semester of college at home that included the fitness portion that being said i was also doing rehab so i had to do physical exercise anyways so it ended up working out perfectly. now adays i try to work in some form of light weight lifting 2 - 3 times a week and walk about 10 - 15km a night at work which is 3 - 4 days a week.