Patterns of muscular activity around the hip joint in ambulatory children with cerebral palsy. An electromyographic...

Effect of posture and voluntary movements on hip muclses in eithteen spastic ambulatory children with cerebral palsy were examined electromyographically. Five normal adults were also examined as controls. In each posture, subluxation hips showed greater activity than concentric and normal hips, and the activity pattern was mostly that of either the flexion or the extension synergies in voluntary movements. The concentric hips did not show the characteristic pattern.