02/16/2026
Recurrent shoulder instability isn’t simply a structural or “loose joint” issue. Emerging evidence suggests it’s associated with functional brain changes that influence motor control, body awareness, and even emotional regulation.
That helps explain why some patients feel unstable despite adequate strength and tissue capacity.
For us as physical therapists, this means that:
Rehab is about restoring confidence across the entire system.
Start with closed-chain loading.
Build coordination.
Progress to open-chain control.
Help the human—not just the shoulder—feel safe again.
The shoulder doesn’t just need strength.
It needs trust.