#Psoas

In the world of fitness and musculoskeletal health, few muscles have received as much recent attention as the psoas—often described by therapists and researchers as the ‘most important muscle you don’t even know you have.’ Recent research and reporting reveal that this deep-seated muscle, threading its way from the lumbar spine through the pelvis to the femur, isn’t just central to movement and posture. The psoas may also hold the key to reducing back pain, preventing disability, and boosting elite athletic performance for people of all ages—including right here in Thailand.

A deep-seated muscle known as the psoas may hold the key to less back pain, better mobility, and higher athletic performance for people of all ages in Thailand. Often called the most important muscle you don’t know you have, the psoas runs from the lower spine through the pelvis to the thigh and sits at the heart of posture and movement.

The psoas is unique because it links the upper and lower body. Healthy, strong psoas function supports posture, walking, and daily activities—from stepping onto a tuk-tuk to kneeling in temple rituals. Its influence extends to core stability and even the nervous system, underscoring its foundational role in overall health.