For our second total-body workout of the week, we're going to hit all the same muscles with different, yet just as challenging, exercises. You'll still be doing four supersets, three sets each, except for the leg portion. For this final burn out, you'll do four sets. Be sure to maintain proper form, and don't hold anything back – you're only in the gym for two days a week, and you get to recover for three days after this routine.