De Macedo Pinheiro Lucas, De Sousa Ana Carolina Cardoso, Bo Antonio Padilha Lanari
Annu Int Conf IEEE Eng Med Biol Soc. 2020 Jul;2020:3293-3296. doi: 10.1109/EMBC44109.2020.9176616.
It is still a challenge to delay the onset of fatigue on muscle contraction induced by Functional Electrical Stimulation (FES). We explored the use of two stimulation methods with the same total area, single electrode stimulation (SES), and spatially distributed electrical stimulation (SDSS) during isometric knee extension with spinal cord injured (SCI) volunteers. We applied stimulation on the left and right quadriceps of two SCI participants with both methods and recorded isometric force and evoked electromyography (eEMG). We calculated the force-time integral (FTI) and eEMG-time integral (eTI) for each stimulation series and used a linear regression as a measure of decay ratio. Moreover, we also estimated the contribution from each channel from eEMG.
延迟功能性电刺激（FES）引起的肌肉收缩疲劳的发作仍然是一项挑战。我们在脊髓损伤（SCI）志愿者进行等长膝关节伸展时，探索了使用两种总面积相同的刺激方法，即单电极刺激（SES）和空间分布电刺激（SDSS）。我们用这两种方法对两名SCI参与者的左右股四头肌进行刺激，并记录等长力和诱发肌电图（eEMG）。我们计算了每个刺激系列的力-时间积分（FTI）和eEMG-时间积分（eTI），并使用线性回归作为衰减率的度量。此外，我们还从eEMG估计了每个通道的贡献。
