I had an issue with my left (non-dominant) shoulder
caused by doing push-ups when I first started Cathe workouts. She made push-ups look sooooo easy
, but it was too much/too soon for the weak, Cathe novice that I was
. "Luckily" I had a PT who thought I might have impingement syndrome (tight chest muscles & weak upper back muscles pull the shoulders forward & impinge the nerves causing shoulder pain). Strengthening the upper back & rear delts helped to relieve the pain, and I worked on building strength & endurance in all the supporting muscles groups (chest, back, shoulders, tris, bis, & core). I started with modified push-ups on knees, wall push-ups, or on a higher bench, and then went to the ball with most of my weight (hips) on the ball. Once the muscle memory was ingrained with the modifiers, I slowly started doing full push-ups.
Full regular push-ups were my new baseline. My new goal became to do as many or at the same pace as Cathe & crew, and to start to incorporate her advanced modifications like one legged, core, and tricep push-ups.
Last summer however, I fractured my right radial neck & badly bruised the right wrist after someone accidentally pushed me off my bike. All I could due was take walks for 4 weeks. Soon after I started PT for my elbow fracture, the therapists had me doing light wall push-ups. I thought about the muscles being used for the motion. Despite my very painful wrist and a cockeyed elbow & forearm, I pictured myself doing strong push-ups on the floor as I had been doing before the injury. Rebuilding the supporting muscle groups came back pretty quickly (muscle memory I'm guessing), and I closely listened to my body.
This summer, I completed my third round of STS (which I've had since it came out). I'm am proudly back to my "new baseline" again!
Depending on how restrictive or painful your shoulder issue is you may want to hold off on STS until you're better/stronger, or just modify/skip some sets of the push-ups in Meso 1 while building the support muscle groups. I have done that on my earlier rounds of STS. It is a periodized program, so doing it fully & in order is kinda important
.
Bottom line, listen to your body because your instincts are smarter than you can imagine. Also, no matter what, I always try to maintain that muscle memory as Cathe says by thinking about the muscles being used or using modifiers with similar muscle movements.