痙直型脳性麻痺児の crouching gait とその定量化に関する研究 Kinematical Analysis of Crouching Gait in Children with Cerebral Palsy (Spastic Diplegia)
大規模な設備が不要で, 被検者に対しても様々な負担がかからない歩行分析を検討する目的で, 痙直型脳性麻痺児20名, 正常児10名を対象に側方からの映像歩行解析を行いスティックピクチュアにより定量化した。その結果, crouching gait を呈する脳性麻痺群と正常群との間に歩行速度, 股関節・膝関節の運動性, 歩幅, 立脚期/遊脚期の比率との間に有意差が認められたが, 上下の重心動揺は有意差が認められなかった。また脳性麻痺群において, 歩幅と歩行速度の間の相関傾向が, 正常児群において, 年齢と歩行速度の間の相関関係がそれぞれ認められ, その他のパラメーターも含め crouching gait の特徴を定量化により示すことができた。
We evaluated in fant gait patterns by simple method converting gait image into computer graphics drawn by stick picture. Kinematical data were collected during comfortable walking on a fioor by 20 children with cerebral palsy (spastic diplegia) and 10 normal children. As a result of that, It was possible to find specific differences between normal children and children with cerebral palsy, and to analyse abnormal gait pattern, called crouching gait. The major differences between normal children and children with cerebral palsy were cruising speed, range of motion of knee joint, dynamic alignment of hip joint and knee joint, up and down movement of center of gravity, step length and ratio of stance phase duration to swing phase duration. We also recognised correlation between age and cruising speed in normal children, between step length and cruising speed in children with cerebral palsy. We proposed that the features of crouching gait as follows: (1) As regards their cruising speed, children with cerebral palsy were slower than normal children. There was no correlation between age and cruising speed. (2) Both hip joint and knee joint of them did not have extension range. (3) As regards their movement of center of gravity, there was no difference between normal children and children with cerebral palsy. (4) As regards their step length, children with cerebral palsy were smaller than normal children. (5) As regards their stance phase, children with cerebral palsy were longer than normal children.
理学療法学 19(4), 371-375, 1992