The effects of alignment of an articulated ankle-foot orthosis on lower limb joint kinematics and kinetics during gait in individuals post-stroke.
The effects of alignment of an articulated ankle-foot orthosis on lower limb joint kinematics and kinetics during gait in individuals post-stroke.
复制标题
铰接式踝足矫形器的对准对中风后个体步态下肢关节运动学和动力学的影响。
DOI：
10.1016/j.jbiomech.2018.11.019
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发表时间：
2019
影响因子：
2.4
通讯作者：
Foreman,KBo
中科院分区：
文献类型：
--
作者：
Kobayashi,Toshiki;Orendurff,MichaelS;Hunt,Grace;Gao,Fan;LeCursi,Nicholas;Lincoln,LucasS;Foreman,KBo
踝足矫形器（AFO）的机械调整对于改善中风后个体的步态非常重要。对准和阻力是铰接式AFO中可调的两个因素。本研究的目的是探讨改变AFO踝关节对线对脑卒中患者下肢关节运动学和动力学的影响，同时保持恒定的背屈和跖屈阻力。步态分析进行了10个人中风后，在四个不同的对齐条件下，使用关节式踝足矫形器与踝关节的对齐是可调的矢状面。下肢关节的运动学和动力学数据记录使用Vicon三维运动捕捉系统和Bertec分裂带仪器跑步机。关节式AFO朝向背屈角度的对线的增量变化显著影响了中风后个体行走时的踝关节和膝关节角度以及膝关节力矩。髋关节参数无显著差异。关节式AFO的对线建议通过改善中风后个体行走时的踝关节运动学，在改善站立时的膝关节运动学和动力学方面发挥重要作用。未来的研究应该调查AFO对线对社区中风后个体步态的长期影响。
Mechanical tuning of an ankle-foot orthosis (AFO) is important in improving gait in individuals post-stroke. Alignment and resistance are two factors that are tunable in articulated AFOs. The aim of this study was to investigate the effects of changing AFO ankle alignment on lower limb joint kinematics and kinetics with constant dorsiflexion and plantarflexion resistance in individuals post-stroke. Gait analysis was performed on 10 individuals post-stroke under four distinct alignment conditions using an articulated AFO with an ankle joint whose alignment is adjustable in the sagittal plane. Kinematic and kinetic data of lower limb joints were recorded using a Vicon 3-dimensional motion capture system and Bertec split-belt instrumented treadmill. The incremental changes in the alignment of the articulated AFO toward dorsiflexion angles significantly affected ankle and knee joint angles and knee joint moments while walking in individuals post-stroke. No significant differences were found in the hip joint parameters. The alignment of the articulated AFO was suggested to play an important role in improving knee joint kinematics and kinetics in stance through improvement of ankle joint kinematics while walking in individuals post-stroke. Future studies should investigate long-term effects of AFO alignment on gait in the community in individuals post-stroke.