As some of you probably know from previous thread I can't lift at the moment so I'm going to do cardio sessions and abs until my injury is better. I started today doing cardio first thing in morning on empty stomach. My question is would it be ok to do cardio in the evening as well. What I mean is by doing 2 cardio sessions is it going to eat more muscle while I can't lift and would you all stick to just in the morning instead of at night to. Also to keep muscle from losing doing cardio and the catobolic break down is it better to doi it at lower intensities for longer periods of time better thanks.