There’s no doubt about the fact that exercise helps keep the heart safe and sound but one needs to be careful about exercising post a heart transplant surgery since the heart is new to your body conditions, and will take time to adapt to new changes. Once you are through with your healing period and your doctor approves, you can start with your regular workout regime, but until then, restrict yourself to the exercises that are suggested by your therapist. As part of the cardiac rehabilitation program, your therapist will customize an exercise program based on your heart condition, age, and health specifications.