Table 3. Movement system impairment diagnosis.

Diagnosis	Movement impairment	Posture	Muscle strength	Muscle length	Pain
Lumbar extension syndrome	Lumbar extension and anterior pelvic tilt during prone hip extension with knee flexed	Marked lumbar lordosis and thoracic kyphosis	Weakness of both abdominal muscles and gluteus maximus	Shortness of both hip flexors and ES	With lumbar extension

ES, erector spinae