一种用于治疗痉挛和挛缩的便携式智能拉伸装置及效果评估

Li-Qun Zhang, S.G. Chung, A.F. Lin, E.M. van Rey, Z. Bai, T. Grant, E. Roth
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引用次数: 3

摘要

开发了一种具有智能控制的便携式拉伸装置,用于治疗神经功能受损患者的痉挛/收缩踝关节并评估其效果。该装置在整个活动范围(ROM)内拉伸踝关节至极端背屈和足底屈,直到达到指定的峰值阻力扭矩,拉伸速度根据阻力扭矩控制。拉伸速度不断调整。在关节极端位置缓慢,可以安全地到达更大的ROM,在中间ROM快速,所以大部分治疗都花在拉伸有问题的极端ROM上。脚踝在极端位置保持一段时间,让压力放松,然后再旋转回另一个极端位置。此外,该装置还从多个方面定量评估治疗效果,包括主动和被动ROM、关节刚度和粘性阻尼、反射兴奋性。结合超声检查,评估拉伸引起的跟腱-腱膜力学性能的变化。智能拉伸减少了痉挛和挛缩,包括增加被动和主动rom,降低弹性刚度和粘性阻尼,增加肌肉发力能力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A portable intelligent stretching device for treating spasticity and contracture with outcome evaluation
A portable stretching device with intelligent control was developed to treat the spastic/contractured ankle of neurologically impaired patients and evaluate the outcome. The device stretched the ankle throughout the range of motion (ROM) to extreme dorsiflexion and plantar flexion until a specified peak resistance torque was reached with the stretching velocity controlled based on the resistance torque. Stretching velocity was adjusted constantly. It was slow at the joint extreme positions, making it possible to reach a larger ROM safely, and it was fast in the middle ROM so the majority of the treatment was spent in stretching the problematic extreme ROM. The ankle was held at the extreme position for a period of time to let stress relaxation occur before it was rotated back to the other extreme position. Furthermore, the device evaluated treatment outcome quantitatively in multiple aspects, including active and passive ROM, joint stiffness and viscous damping, and reflex excitability. Combined with ultrasonography, the device was used to evaluate changes in mechanical properties of the Achilles tendon-aponeurosis induced by the stretching. The intelligent stretching reduced spasticity and contracture, including increases passive and active ROMs, decreases in elastic stiffness and viscous damping, and increase in muscle force-generating capacity.
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