경직형 양지마비아의 기립시 하지근 활성화와 하지 관절각에 관한 연구

A Study on Lower Extremity Muscle Activity and Lower Extremity Joint Angle in the Standing of Child with Spastic Diplegia

The purpose of this study is to provide the basic data for treatment of children with spastic diplegia, understnding the standing posture and early stage of walking through measuring their lower extremity muscle activity, the angle of pelvic tilt, and lower extremity joint angle in standing through comparative analysis with normal children. The subjects of this study were 16 children of 4-7 years with spastic diplegia and 16 normal children. The results were as follows : First, there was significant difference of the RMS value of standing in rectus femoris and medial hamstring between normal children and children with spastic diplegia(p<.05), but there was no significant difference of the comparison of bilateral symmetry in both groups(p>.05). Second, there was significant difference in the angles of pelvis tilt, knee joint, and ankle joint, and foot angle between normal children and children with spastic diplegia(p<.05). Third, for normal children, as the angle of pelvis tilt was being increased, the muscle contraction of gluteus maximus and rectus femoris became increased, and the angles of knee joint and ankle joint became increased. Also, as the angle of knee joint was increased, the muscle contraction of gluteus maximus and rectus femoris became increased, and as the angle of ankle joint was increased, the muscle contraction of gluteus maximus became increased.