Middleton E A, Hurley G R, McIlwain J S
Kinesiology Laboratory, School of Physical and Health Education, University of Toronto, Ontario, Canada.
Prosthet Orthot Int. 1988 Dec;12(3):129-35. doi: 10.3109/03093648809079396.
Ankle-foot orthoses are commonly used in the treatment of spastic cerebral palsy to hold the foot in a position conductive to a more functional gait. This study, utilizing quantitative biomechanical techniques, evaluates the effects of a rigid ankle-foot orthosis and a hinged ankle-foot orthosis on spastic cerebral palsy gait. The subject was a 4.5 year old female diagnosed as spastic diplegic cerebral palsied shortly after birth. Testing involved collection of kinematic coordinate data employing a WATSMART video system and ground reaction force data using a Kistler force plate. Jensen's (1978) photogrammetric method was used to estimate body segment inertial parameters. The hinged ankle-foot orthosis was found to be more effective than the rigid ankle-foot orthosis. The subject exhibited a more natural ankle motion during the stance phase of gait, greater symmetry of segmental lower extremity motion, and decreased knee moments during stance while wearing a hinged ankle-foot orthosis.
踝足矫形器常用于治疗痉挛性脑瘫，以使足部保持在有利于更功能性步态的位置。本研究运用定量生物力学技术，评估了刚性踝足矫形器和铰链式踝足矫形器对痉挛性脑瘫步态的影响。受试者是一名4.5岁女性，出生后不久被诊断为痉挛性双侧瘫痪型脑瘫。测试包括使用WATSMART视频系统收集运动学坐标数据，以及使用奇石乐测力板收集地面反作用力数据。采用詹森（1978年）的摄影测量方法估算身体节段惯性参数。结果发现，铰链式踝足矫形器比刚性踝足矫形器更有效。受试者在步态支撑期表现出更自然的踝关节运动、下肢节段运动的更大对称性，并且在佩戴铰链式踝足矫形器时支撑期的膝关节力矩减小。
