Evaluation of HEXORR Tone Assistance Mode Against Spring Assistance.
Evaluation of HEXORR Tone Assistance Mode Against Spring Assistance.
复制标题
HEXORR 音调辅助模式与弹簧辅助的评估。
DOI：
10.1109/tnsre.2015.2398933
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
Lum,PeterS
中科院分区：
文献类型：
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作者：
Godfrey,SashaBlue;Holley,RahsaanJ;Lum,PeterS
机器人是一种很有前途的康复工具，研究表明，将援助与受试者参与相结合，以保持积极性和参与度。在这项研究中，我们比较了两种不同类型的机器人辅助手部康复：音调，一种旨在直接补偿用户张力过高的新方法，和弹簧，一种常用的方法，模拟弹簧般的力吸引受试者到目标位置。八名慢性中风受试者玩了一个门游戏，他们引导一个球通过一个扫描，在屏幕上的门。每名受试者暴露于5种模式：无辅助模式、弹簧和音调模式辅助模式以及“延迟”模式（在无辅助一段时间后提供辅助）。与无辅助试验相比，受试者在所有类型的辅助下产生较少的积极工作和更多的消极工作，但也达到了更大的ROM，并在游戏中得分更高。值得注意的是，与Spring相比，Tone的受试者总体上产生了更积极的工作。此外，与无辅助相比，受试者在使用Spring的显著较短范围内产生了积极的工作，而Tone和Unassisted之间没有差异。虽然这两种模式都能有效地实现更大工作空间的训练，但这些结果表明Tone辅助保持了更高水平的受试者参与和参与，可能使其成为手部康复的有用工具。
Robots are a promising tool for rehabilitation, and research suggests combining assistance with subject participation to maintain motivation and engagement. In this study, we compare two different types of robotic assistance for hand rehabilitation: Tone, a novel method designed to directly compensate for the user's hypertonia, and Spring, a commonly used method simulating a spring-like force attracting the subject to the target position. Eight chronic stroke subjects played a Gate Game, where they guide a ball through a sweeping, on-screen gate. Each subject was exposed to 5 modes: unassisted, assisted by the Spring and Tone modes, and “delay” modes where the assistance was provided after a period without assistance. Compared to unassisted trials, subjects produced less positive work and more negative work with all types of assistance but also reached a larger ROM and scored higher on the game. Notably, subjects produced more positive work overall with Tone compared to Spring. Further, subjects produced positive work over a significantly shorter range with Spring compared to Unassisted, while there was no difference between Tone and Unassisted. While both modes were effective at enabling the training of a larger workspace, these results suggest Tone assistance maintains a greater level of subject engagement and participation, likely making it a useful tool for hand rehabilitation.