A dynamic splint is superior to traditional static splint, offering more benefits such as reduced spasticity, allowing comfortable stretch, repositioning fingers in extension positions, and increasing hand performance. This paper suggested the development of a dynamic splint based on a pulley rotation with a locking system as a home rehabilitation device to reduce hand spasticity in stroke patients. Moreover, this study consisted of two main activities: simulation using finite element analysis and clinical experimental trials. Eight stroke patients participated in 4 weeks of intervention using the proposed dynamic splint for a combined total of least 3 hours per day at home. Outcome measures included Fugl-Meyer Assessment (FMA) and Modified Modified Ashworth Scale (MMAS) at baseline, 2 weeks, and 4 weeks. After 4 weeks of wearing, participants were also asked to fill out a satisfaction questionnaire. The results showed that wearing this proposed dynamic splint over 4 weeks, the hand function of participants increased significantly(p <; 0.05), and the spasticity of the hand muscles decreased significantly(p <; 0.05). With an overall rating of 8 out of 10 points, stroke participants had a high level of satisfaction with this home-use dynamic splint. The findings indicated that stroke patients who used this proposed splint showed substantial changes in hand function and reduced hand spasticity.

中文翻译：

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基于滑轮旋转设计的动态夹板治疗手部痉挛的生物力学评估


动态夹板优于传统的静态夹板，具有更多优点，例如减少痉挛、允许舒适的伸展、将手指重新定位在伸展位置以及提高手部性能。本文建议开发一种基于带锁定系统的滑轮旋转的动态夹板作为家庭康复设备，以减少中风患者的手部痉挛。此外，这项研究包括两个主要活动：使用有限元分析进行模拟和临床实验。 8 名中风患者使用拟议的动态夹板参加了为期 4 周的干预，每天在家总共至少 3 小时。结果测量包括基线、2 周和 4 周时的 Fugl-Meyer 评估 (FMA) 和改良 Ashworth 量表 (MMAS)。佩戴4周后，参与者还被要求填写满意度调查问卷。结果显示，佩戴该动态夹板超过 4 周，参与者的手部功能显着增强（p <；0.05），手部肌肉的痉挛显着降低（p <；0.05）。中风参与者对这款家用动态夹板的总体评分为 8 分（满分 10 分）。研究结果表明，使用这种夹板的中风患者手部功能发生了显着变化，手部痉挛程度减轻。