New algorithm to control a cycle ergometer using electrical stimulation
New algorithm to control a cycle ergometer using electrical stimulation
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DOI：
10.1007/bf02343534
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发表时间：
2003-01-01
影响因子：
3.2
通讯作者：
Petrofsky, JS
中科院分区：
文献类型：
--
作者：
Petrofsky, JS
从四名男性受试者收集数据，以确定在自行车测力计负荷，速度和肌肉使用之间的关系。然后，这些数据被用来构建方程来管理肌肉的刺激瘫痪的个人，在自行车测力计引起的功能性电刺激（FES）的四头肌，臀大肌和腿筋肌肉。该算法进行了测试的四个科目谁是瘫痪，由于一个完整的脊髓损伤之间的T4和T11。使用多元方程，改善了运动控制，当肌肉刺激也由电刺激控制时，完成的功是传统FES踏车测力计的两倍（2940 Nm min（-1）与5880 Nm min（-1）相比）。通过心输出量评估的身体压力在新算法的最大工作期间几乎增加了两倍（81 min（-1）与新算法的151 min（-1）相比）。这些数据支持的概念，一个人可以实现对FES踏车测力计的工作量的限制是在控制方程，而不是在瘫痪的肌肉。
Data were collected from four male subjects to determine the relationships between load, speed and muscle use during cycle ergometry. These data were then used to construct equations to govern the stimulation of muscle in paralysed individuals, during cycle ergometry induced by functional electrical stimulation (FES) of the quadriceps, gluteus maximus and hamstring muscles. The algorithm was tested on four subjects who were paralysed owing to a complete spinal cord injury between T4 and T11. Using the multivariate equation, the control of movement was improved, and work was accomplished that was double (2940 Nm min(-1) compared with 5880 Nm min(-1)) that of traditional FES cycle ergometry, when muscle stimulation was also controlled by electrical stimulation. Stress on the body, assessed by cardiac output, was increased almost two-fold during maximum work with the new algorithm (81 min(-1) compared with 151 min(-1) with the new algorithm). These data support the concept that the limitation to workload that a person can achieve on FES cycle ergometry is in the control equations and not in the paralysed muscle.