#PsoasMuscle

A growing body of science is shining a light on a deep-seated muscle—the psoas—that many people overlook. Once dismissed as obscure, the psoas is now recognized by medical professionals and physical therapists as essential for core stability, movement, and even stress management. This shift could reshape rehabilitation, exercise, and everyday health, with meaningful implications for Thailand where sedentary lifestyles and back pain are increasingly common.

The psoas lives deep in the abdomen, linking the spine to the femur as it threads through the pelvis. It powers basic actions like walking, standing, and sitting, and acts as a shock absorber for the lower spine. Yet it remains largely unseen, earning its label as the “most important muscle you don’t know.” When the psoas tightens or weakens—often from extended sitting or limited movement—it can drive back pain, posture problems, and even digestive discomfort. A senior physiotherapist at a leading Bangkok hospital notes that the psoas is the primary hip flexor and stabilizer; when it shortens, pain can radiate beyond the lower back to other parts of the body.

A growing body of research has drawn attention to a little-known yet crucial muscle deep within the human body—the psoas. Often overshadowed by more well-known muscles, the psoas is now being recognized by medical professionals and physical therapists as instrumental to core stability, movement, and even mental well-being, according to recent coverage by Literary Hub. Understanding its role may change long-standing approaches to rehabilitation, exercise, and health maintenance, with potential benefits for millions, including those in Thailand where sedentary lifestyles and chronic back pain are increasingly common.