I did a quick search to see what was recommended. While I've collected a few recommendations, I don't have the reasoning for them. The most directly useful link was this one summarized below:
- Focus on continuous activity like swimming, jogging, aerobic exercise where you move large muscle groups continuously
- Light strength training is OK (lower weights higher reps)
- Exercise three non-consecutive days a week
- Discontinue exercise if you are dehydrated, very tired, have shortness of breath, have a fever, change in dialysis schedule.
Kidney.org had a brochure with some basic information in there:
- Three main types of exercises are beneficial: stretching, strength, and aerobic
- If you are completely out of shape, start with stretching and basic strength until you can sustain an aerobic exercise.
- You should slow down if: the exercise feels very hard, you are out of breath when you try to talk, you feel your heart racing, or you are not fully recovered an hour after exercise.
Based on that information, heavy lifting and sprinting is not an option. Probably some of the better options might include yoga or pilates. Do keep a regular dialog with your doctor, as kidney issues are serious. If they tell you to slow down, stop, or change what you are going, listen to them.