Electromyographic activity of the trunk extensor muscles: effect of varying hip position and lumbar posture during Roman chair exercise.


OBJECTIVE To evaluate the effect of hip position and lumbar posture on the surface electromyographic activity of the trunk extensors during Roman chair exercise. DESIGN Descriptive, repeated measures. SETTING University-based musculoskeletal research laboratory. PARTICIPANTS Twelve healthy volunteers (7 men, 5 women; age range, 18-35y) without a… (More)