Liyanagamage Shanie A, Bertucco Matteo, Bhanpuri Nasir H, Sanger Terence D
1 Department of Biomedical Engineering, University of Southern California, Los Angeles, CA, USA.
2 Department of Neurology, University of Southern California, Los Angeles, CA, USA.
J Child Neurol. 2017 Feb;32(2):161-169. doi: 10.1177/0883073816671830. Epub 2016 Oct 26.
Vibratory feedback can be a useful tool for rehabilitation. We examined its use in children with dystonia to understand how it affects muscle activity in a population that does not respond well to standard rehabilitation. We predicted scaled vibration (ie, vibration that was directly or inversely proportional to muscle activity) would increase use of the vibrated muscle because of task-relevant sensory information, whereas nonscaled vibration would not change muscle use. The study was conducted on 11 subjects with dystonia and 14 controls. Each subject underwent 4 different types of vibration on the more dystonic biceps muscle (or nondominant arm in controls) in a 1-dimensional, bimanual myocontrol task. Our results showed that only scaled vibratory feedback could bias muscle use without changing overall performance in children with dystonia. We believe there may be a role in rehabilitation for scaled vibratory feedback to retrain abnormal muscle patterns.
振动反馈可能是一种有用的康复工具。我们研究了其在肌张力障碍儿童中的应用，以了解它如何影响对标准康复反应不佳人群的肌肉活动。我们预测，比例缩放振动（即与肌肉活动成正比或反比的振动）会因与任务相关的感觉信息而增加被振动肌肉的使用，而非比例缩放振动不会改变肌肉的使用情况。该研究对11名肌张力障碍患者和14名对照者进行。在一维双手肌控制任务中，每位受试者在肌张力较高的肱二头肌（或对照组中的非优势手臂）上接受4种不同类型的振动。我们的结果表明，只有比例缩放振动反馈能够在不改变肌张力障碍儿童整体表现的情况下使肌肉使用产生偏差。我们认为，比例缩放振动反馈在康复中可能有助于重新训练异常的肌肉模式。
