Back pain has several possible sources. A clinical evaluation can consider muscles alongside the spine, nerves, and other tissues. Pain that persists after treatment warrants further evaluation; it does not, by itself, identify which tissue is responsible.
Muscle examination can include strength, flexibility, tenderness, and whether movement reproduces familiar pain. Tenderness alone does not establish the source: pain can also be felt away from the tissue generating it.
A 2013 study published in Pain Medicine reported lasting reductions in pain and its interference with daily life after muscle-focused treatment. The study included 56 people with persistent low back pain despite previous treatment. These findings give clinicians a reason to examine muscles as a potential source of pain. Controlled studies are needed to establish how the treatment compares with other approaches. Explore the clinical evidence.