Does Trans-radial Longitudinal Compression Influence Myoelectric Control?
Does Trans-radial Longitudinal Compression Influence Myoelectric Control?
复制标题
经桡动脉纵向压迫是否影响肌电控制？
DOI：
10.33137/cpoj.v5i2.37963
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发表时间：
2022
期刊：
影响因子：
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通讯作者：
Dyson, M
中科院分区：
文献类型：
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作者：
Olsen, J;Day, S;Dupan, S;Nazarpour, K;Dyson, M
现有的经桡骨假肢接受腔设计没有被优化以促进可靠的肌电控制。许多插座设计早于肌电装置的引入。然而，近年来出现了具有改善的生物力学稳定性的窝设计，特别是纵向压缩窝。既没有后续的影响，如果有的话，稳定的肢体肌电控制，也没有在其中的安排，以适用于压缩已报告。12名身体健全的参与者在佩戴三种不同配置的纵向压缩插座模拟器时完成了两项任务：1）压缩，其中压缩支柱放置在感兴趣的肌肉顶部，2）缓解，其中压缩支柱放置在记录的肌肉的任一侧，以及3）未压缩，没有外部压缩。任务是1）单通道肌电目标跟踪练习，其次是2）高强度抓握任务。观察佩戴者在跟踪任务期间的准确性、收缩期间模拟器相对侧的压力以及肢体疲劳的速率。对于不同的压缩配置，没有观察到跟踪任务准确性评分或疲劳率之间的显著差异。压缩配置的压力记录显示，在肌肉收缩期间，模拟器的相对侧保持压力。纵向压缩不会抑制单通道EMG控制，也不会改善疲劳性能。由于在肌肉收缩期间维持压力，纵向压缩插座具有提高多通道EMG控制的可靠性的潜力。
Existing trans-radial prosthetic socket designs are not optimised to facilitate reliable myoelectric control. Many socket designs pre-date the introduction of myoelectric devices. However, socket designs featuring improved biomechanical stability, notably longitudinal compression sockets, have emerged in more recent years. Neither the subsequent effects, if any, of stabilising the limb on myoelectric control nor in which arrangement to apply the compression have been reported. Twelve able-bodied participants completed two tasks whilst wearing a longitudinal compression socket simulator in three different configurations: 1) compressed, where the compression strut was placed on top of the muscle of interest, 2) relief, where the compression struts were placed either side of the muscle being recorded and 3) uncompressed, with no external compression. The tasks were 1) a single-channel myoelectric target tracking exercise, followed by 2), a high-intensity grasping task. The wearers’ accuracy during the tracking task, the pressure at opposing sides of the simulator during contractions and the rate at which the limb fatigued were observed. No significant difference between the tracking-task accuracy scores or rate of fatigue was observed for the different compression configurations. Pressure recordings from the compressed configuration showed that pressure was maintained at opposing sides of the simulator during muscle contractions. Longitudinal compression does not inhibit single-channel EMG control, nor improve fatigue performance. Longitudinal compression sockets have the potential to improve the reliability of multi-channel EMG control due to the maintenance of pressure during muscle contractions.