I have a bad head contusion and I have a bad heart mtrovalve prolapse so how can

[nancy b]

I still exercise? I had a twenty five pound weight bar fall on the back of my head and hit my skull in two spots my head at the gym I used to go to. I used to workout six days a week and now with my head contusion I can't so how do I still keep my heart healthy without any cardio. Please someone answer my question.