Hoping for some advice since you've dealt with this issue.
I'm going in for shoulder surgery for my other shoulder in two weeks (both have/had muscle tore off the bone). First shoulder (right) was done 3 months ago, still healing. When I was able, I worked up from light to heavy kettle-bells in my good hand and did single leg workouts; step ups, band split squats, single RDL's etc. to train and try and keep what strength I can.
Now since my left shoulder will be worked on and my right will start light weight rehab after my left's surgery (my PT schedule), I have no arm left that can handle a 60lb or higher kettle bell for strength training.
All I can come up with is doing bodyweight single work and sled dragging. Thinking about the prowler challenge from beyond but instead using a sled strapped to my waist.
Any advice/ suggestions? possibly a sled program or other lower body program you can think of that will get me by and keep me sane while I'm limited?