18/02/2026
That persistent, uncomfortable tension between your shoulder blades doesn’t always originate in your back.
One of the most common and overlooked contributors is tight chest muscles.
When the pectorals shorten, they pull the shoulders forward and promote a rounded upper-back posture.
This shifts the shoulder blades away from their ideal position, forcing the mid-back muscles to work much harder simply to keep you upright.
Over time, those muscles become tight, fatigued, and sore, not because they’re weak, but because they’re being overworked.
The answer isn’t endless stretching or massaging of the mid-back, but addressing what’s happening at the front of the body.
Releasing the chest allows the shoulders to return to a more natural resting position, reducing load through the mid-back, improving posture and breathing, and taking strain off the neck.
So if mid-back discomfort keeps coming back, don’t just treat the symptoms, address what’s pulling everything out of alignment.
The Sharp Physio Team