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首页> 外文期刊>The Journal of Musculoskeletal and Neuronal Interactions >A biosignal analysis for reducing prosthetic control durations: a proposed method using electromyographic and mechanomyographic control theory
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A biosignal analysis for reducing prosthetic control durations: a proposed method using electromyographic and mechanomyographic control theory

机译：减少假体控制持续时间的生物信号分析：一种使用肌电图和机械描记法控制理论的方法

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Objectives: This project proposes a unique methodology utilizing electromyography and mechanomyography todetermine the intensity of a desired movement which may be useful in further developing decomposition algorithms forprosthetic controls. Methods: Ten males performed isometric leg extension muscle actions corresponding to 20, 40, 60,80, and 100% of their maximal voluntary isometric contraction force. The duration and amplitude of the gross lateralmovement of the mechanomyographic signal as well as electromechanical delay were measured during each contraction.Results: The results indicated that the duration of the gross lateral movement decreased with increases in intensity(2040=6080100% maximal voluntary isometric contraction) and that the amplitude of the gross lateral movementincreased with increases in intensity (2040=6080100% maximal voluntary isometric contraction). In addition,electromechanical delay decreased with each increase in intensity. These measurements occurred within 40 ms fromthe onset of the electromyographic signal. Conclusions: Thus, these measurements may be incorporated into existingprosthetic control algorithms to reduce grasp times and identify the intensity of a movement earlier. In addition, the grosslateral movement and electromechanical delay measurements may provide more intuitive controls for prosthetic users.
机译：目的：该项目提出了一种独特的方法，利用肌电图和机械功法确定所需运动的强度，这可能对进一步开发用于假肢控制的分解算法很有用。方法：十名男性进行了等长的腿部伸展肌肉动作，分别相当于其最大自愿等长收缩力的20％，40％，60.80％和100％。测量每次收缩过程中机电X线信号的横向运动的持续时间和幅度以及机电延迟。结果：结果表明，横向运动的持续时间随着强度的增加而减小（20 <40 = 60 <80 < 100％最大自发等距收缩，并且总横向运动幅度随强度增加而增加（20 <40 = 60 <80 <100 <100％最大自发等距收缩）。此外，机电延迟随着强度的增加而减小。这些测量发生在肌电信号开始后的40毫秒内。结论：因此，这些测量可以被合并到现有的假肢控制算法中，以减少抓紧时间并更早地识别运动的强度。另外，外侧运动和机电延迟测量可以为假肢使用者提供更直观的控制。

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