noun
- Either of two deep abdominal muscles that flex the hip and spine; especially the psoas major, which runs from the lower spine to the thighbone.
Usage: anatomy; usually used in the phrase 'psoas muscle' or 'psoas major'
Examples
- The psoas muscle is one of the deepest muscles in the human body.
- Tight psoas muscles can contribute to lower back pain and poor posture.
- Yoga instructors often recommend stretches to lengthen the psoas.
- The psoas major originates from the lumbar vertebrae.
- Athletes sometimes experience psoas strain from repetitive hip flexion movements.