I have injuries so I can just hit the weights and do body parts that I can do right? I have bad shoulders (rotator cuff impingements and ac joint separations on both sides). Even lightweights and body weight push / pull exercises leave me sore for days. Core and lower body is fine so, for grappling purposes, I should be hitting legs and core still. Use straps and try to dead lift what I can (as heavy as my arms / shoulders allow of course). Simple right? But for some reason when I can't workout my full body I feel like not working out at all, as if there will be an imbalance. I think rolling 3 to 4 nights a week with all the push / pull / gripping involved is good enough to keep a semi balanced frame and should be better than no weights at all. Any issues anyone can think of that only lifting weights for lower body and core, skipping upper body (chest, back, arms, traps, etc...) may cause. Can an imbalance cause any weird movement limitations or more importantly cause physical imbalance changes? Thanks in advance!