Speaking of ...
If there's one thing I don't leave out, it's legs. The hardest thing I'm doing right now is Olympic weightlifting. I already KNOW I can power up a LOT more weight. But doing it by the numbers with proper technique is a whole 'nuther ball game. The squat snatch and squat clean and jerk however don't miss many muscles at all. I found some "new" ones as a matter of fact
My legs and lower back suffered the most when I was in the hospital which is something I NEVER had to deal with. I was always naturally strong.
Your upper body ain't going anywhere your lower body don't take it.