If your upper trapezius is constantly tight, massaging or attempting to "pop" tension points will not solve the problem long-term. This stiffness is often a compensatory reaction from your body to offset a lack of strength and stability in the shoulder's rotator and stabilizer muscles. The lasting solution involves performing targeted strengthening exercises (such as external shoulder rotations with a resistance band and hold) to restore strength to the proper supporting muscles.

noli's read

The idea that upper trapezius tension compensates for weakness in other shoulder muscles is scientifically very relevant. A randomized clinical trial (RCT) published in the Journal of Physical Therapy Science demonstrates that exercises targeting scapular stabilizers significantly reduce stiffness and excessive activity of the upper trapezius. Furthermore, an observational study published in the journal PLoS ONE confirms that weakness of the shoulder rotators is directly linked to an increase in the rigidity of this muscle. Conversely, the visual claim that a massage can mechanically "pop" a tension knot is a common exaggeration. According to the consensus of bodywork professionals, this sensation of a physical "pop" corresponds to the slipping of a taut band of fibers under the fingers or a sudden nervous release, and not the bursting of a closed structure. The approach of Squat University, which proposes replacing passive massages with active shoulder strengthening, is therefore widely validated for providing lasting tension relief.

the sources

No named source held this one up — that absence is part of the verdict.