So, there's this thing with my knee. It never bothers me unless I'm doing stairs; then it hurts like hell. This means that it flares up big time during squats and lunges, which is truly a shame, because squats and lunges make my booty look really sweet.
I'm thinking of swapping out those 2 particular exercises for knee extensions and donkey kicks, with the idea of building muscle in the area and then maybe I won't look 80 on the stairs anymore.
Any fitness champions out there have any suggestions?