I badly sprained my ankle 6 months ago, which then healed but I recently started running to keep fit. My usual exercise before included mainly aerobics and some kickboxing workouts neither of which were as hard on my ankles. I've now pushed myself too hard to the point where it actually hurts so much that I cannot run :(…
I've recently started exercising harder than usual, with more intense cardio workouts. I was just wondering, is it better to workout for say 45 minutes, raising the heart rate but not getting too out of breath, or for about 20 minutes at a really high intensity, getting really red in the face and out of breath? Obviously…