I went back to your very first post and I think you might consider just reworking your push-up positioning and trying to build strength that way, rather than doing everything but push-ups.
As you set up for the push-up, you initially have good scapula positioning, but then you shift your feet and hips and wing the scapula before beginning the set - the scaps stay winged from then on. Can you do any push-ups while the scaps remain "stuck to your back pockets" as they are in this pic?
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That is what I would prefer to do! A lot of the shifting around in my videos is just me trying to get things in a position that feels "comfortable," if that means anything.
What I have found is that I can
mostly mimic the scapular position in that screenshot...IF I do them concentric-only, from a dead start. Even then, when I have looked at the footage in slow motion, the left scap is
still not the "same" as the right. Unfortunately, I don't think I have any of that footage saved. I will try and get some footage tomorrow when I am more fresh, though!
I should NOTE:
In the past I have made comments about going through a movement disorder with my right hand (focal dystonia). The doctor (as in, PhD) whose programs and research I followed to rehabilitate the condition had said that it wouldn't be uncommon to find similar issues in other areas of the body.
I was originally right-handed, and my right hand was my dystonic hand. So, I had to learn to "be left-handed." I am almost 100% certain this has to do with the scapula issue. I have to do almost all my schoolwork left-handed. I can write lefty just fine now (after some ~8 ish years) but I think it has ingrained some kind of "unnatural" postural compensation. That is, I am a "right handed" person who writes left handed, and spends a
lot of time writing lefty.
All that said, a part of dystonia, that I can attest to, is that some of your muscles "forget" how to activate. That is exactly what this scapula thing feels like. It's like if I get into a pushup position and descend, my scapular muscles are "blind;" they don't know how to activate or work. It's almost like there's a position where I can't feel them at all, and so my body reverts to a position where it feels
something, even if that something is "dysfunctional." If I start at the bottom and very slowly build tension, I can get them to "work" in that the scap sticks to my back, but ...not.... quite... in the right position. If I try to slowly descend, the left scap doesn't move the way it's "supposed to."
Again, I wil l try to film again tomorrow (or sometime soon) to show what happens when I do these things.
I want to extend my thanks and appreciation to everyone who has given me input so far. It's been a frustrating and long struggle, and some of the input here has been helpful in the last couple weeks or so. I want to give some of the suggestions some time to see how they treat me, and then give some updates on those things in particular.