Why the Mechanical Argument for Tight Muscles Doesn’t Explain Pain (greglehman.ca)

• Traditional deficit-based models oversimplify pain causation
• Mechanical deviations are often normal variant, not pathological
• Pain science supports biopsychosocial, not purely biomechanical, explanations

"Traditional physiotherapy often looks for physical deficits like posture deviations or limited range of motion and claims these cause pain. This article argues that the mechanical argument does not hold up when considering pain science. Pain is complex and not simply caused by deviations from averages. Clinicians should adopt biopsychosocial models."