The effects of an articulated ankle-foot orthosis with resistance-adjustable joints on lower limb joint kinematics and kinetics during gait in individuals post-stroke.
The effects of an articulated ankle-foot orthosis with resistance-adjustable joints on lower limb joint kinematics and kinetics during gait in individuals post-stroke.
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DOI：
10.1016/j.clinbiomech.2018.08.003
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发表时间：
2018-11
期刊：
影响因子：
--
通讯作者：
Foreman KB
中科院分区：
文献类型：
--
作者：
Kobayashi T;Orendurff MS;Hunt G;Gao F;LeCursi N;Lincoln LS;Foreman KB
阻力是踝足矫形器的一个关键机械特性，影响中风后个体的步态。 Triple Action® 关节可以独立调节踝足矫形器的跖屈阻力和背屈阻力。因此，本研究的目的是调查具有三动作关节的铰接式踝足矫形器背屈和跖屈阻力的增量变化对中风后步态个体下肢关节运动学和动力学的影响。使用铰接式踝足矫形器对 10 名中风后患者在八种阻力设置（四种跖屈阻力和四种背屈阻力）下进行步态分析。使用三维 Vicon 运动捕捉系统和 Bertec 分体带仪表跑步机记录行走时下肢关节的运动学和动力学数据。重复测量方差分析显示，跖屈阻力的调整对初始接触时的踝关节（P<0.001）和膝关节（P<0.05）角度有显着的主效应，而背屈阻力对站立时背屈峰值角度有显着的主效应（P<0.01）。跖屈和背屈阻力调整似乎会影响站立时的膝关节峰值屈曲力矩，但没有发现显着的主效应（P = 0.10）。跖屈阻力的调整也显示出对站立时踝关节峰值正功率的显着（P<0.05）主效应。这项研究表明，三动作关节踝足矫形器的阻力调整会影响中风后个体的踝关节和膝关节运动学。需要进一步的工作来研究铰接式踝足矫形器对其步态的长期影响。
Resistance is a key mechanical property of an ankle-foot orthosis that affects gait in individuals post-stroke. Triple Action® joints allow independent adjustment of plantarflexion resistance and dorsiflexion resistance of an ankle-foot orthosis. Therefore, the aim of this study was to investigate the effects of incremental changes in dorsiflexion and plantarflexion resistance of an articulated ankle-foot orthosis with the Triple Action joints on lower limb joint kinematics and kinetics in individuals post-stroke during gait. Gait analysis was performed on 10 individuals who were post-stroke under eight resistance settings (four plantarflexion and four dorsiflexion resistances) using the articulated ankle-foot orthosis. Kinematic and kinetic data of the lower limb joints were recorded while walking using a three-dimensional Vicon motion capture system and a Bertec split-belt instrumented treadmill. Repeated measures analysis of variance revealed that adjustment of plantarflexion resistance had significant main effects on the ankle (P<0.001) and knee (P<0.05) angles at initial contact, while dorsiflexion resistance had significant (P<0.01) main effects on the peak dorsiflexion angle in stance. Plantarflexion and dorsiflexion resistance adjustments appeared to affect the peak knee flexor moment in stance, but no significant main effects were revealed (P=0.10). Adjustment of plantarflexion resistance also demonstrated significant (P<0.05) main effects in the peak ankle positive power in stance. This study demonstrated that the adjustments of resistance in the ankle-foot orthosis with the Triple Action joints influenced ankle and knee kinematics in individuals post-stroke. Further work is necessary to investigate the long-term effects of the articulated ankle-foot orthoses on their gait.
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影响因子：
2.3
作者：
Baumbach SF;Brumann M;Binder J;Mutschler W;Regauer M;Polzer H
通讯作者：
Polzer H
影响因子：
2.4
作者：
Andres Gatti, Marcelo;Freixes, Orestes;Emilio Olmos, Lisandro
通讯作者：
Emilio Olmos, Lisandro
影响因子：
1.5
作者：
Yamamoto, Sumiko;Ibayashi, Setsuro;Yasui, Tadashi
通讯作者：
Yasui, Tadashi
影响因子：
4.2
作者：
Kautz SA;Bowden MG;Clark DJ;Neptune RR
通讯作者：
Neptune RR
DOI：
10.1016/j.clinbiomech.2011.09.005
发表时间：
2012-03
期刊：
Clinical biomechanics (Bristol, Avon)
影响因子：
--
作者：
Bennett BC;Russell SD;Abel MF
通讯作者：
Abel MF