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Comparison of the pedalling performance induced by magnetic and electrical stimulation cycle ergometry in able-bodied subjects

机译：健壮受试者中电磁刺激循环测功所产生的蹬踏性能比较

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The purpose of the study was to compare the mechanical power and work generated by able-bodied subjects during functional magnetic stimulation (FMS) vs. functional electrical stimulation (FES) induced ergometer training conditions. Both stimulation methods were applied at a 30Hz frequency to the quadriceps muscles of 22 healthy able-bodied subjects to induce cycling for 4× four minutes or until exhaustion. FMS was performed via large surface, cooled coils, while FES was applied with a typical stimulation setup used for cycling. Significantly more (p10-3) muscular power was generated by FMS (23.8±9.1W [mean±SD]) than by FES (11.3±11.3W). Additionally, significantly more (p10-6) work was produced by FMS than by FES (4.413±2.209kJ vs. 0.974±1.269kJ). The increase in the work was paralleled by a significant prolongation of time to cycling failure (181.8±33.4s vs. 87.0±54.0s, respectively, p10-5). Compared to FES, FMS can produce more intense and longer cycling exercise in able-bodied subjects. The differing dynamic behaviour of FMS and FES in the presented measurement setup might be related to stimulation induced pain and fatigue mechanisms of the neuromuscular system.
机译：这项研究的目的是比较功能健全的受试者在功能性磁刺激（FMS）与功能性电刺激（FES）诱发的测功训练条件下产生的机械功率和功。两种刺激方法均以30Hz的频率应用于22位健康健全的受试者的股四头肌上，以诱导骑行4次4分钟或直至疲惫。 FMS是通过大面积，冷却的线圈进行的，而FES则采用典型的循环刺激设置。与FES（11.3±11.3W）相比，FMS（23.8±9.1W [平均值±SD]）产生的肌肉功率明显更多（p <10-3）。此外，与FES相比，FMS产生的功（p <10-6）大得多（4.413±2.209kJ vs. 0.974±1.269kJ）。工作量的增加与骑自行车失败的时间显着延长同时发生（分别为181.8±33.4s和87.0±54.0s，p <10-5）。与FES相比，FMS可以在身体强健的受试者中进行更激烈和更长的自行车运动。在提出的测量设置中，FMS和FES的不同动态行为可能与刺激引起的神经肌肉系统的疼痛和疲劳机制有关。

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