Comparison of the pedalling performance induced by magnetic and electrical stimulation cycle ergometry in able-bodied subjects |
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| Affiliation: | 1. Center for Sensorimotor Research, Department of Neurology, Ludwig-Maximilians University, Munich, Germany;2. Discipline of Exercise and Sports Science, Faculty of Health Sciences, University of Sydney, Sydney, Australia;1. Department of Surgery, Catharina Hospital, Eindhoven, The Netherlands;2. CAPHRI Research School, Maastricht University Medical Centre, Maastricht, The Netherlands;3. Department of Education and Research, Catharina Hospital, Eindhoven, The Netherlands;4. Department of Surgery, Martini Hospital, Groningen, The Netherlands;5. Department of Surgery, Máxima Medical Centre, Veldhoven, The Netherlands;6. CARIM Research School, Maastricht University Medical Centre, Maastricht, The Netherlands;1. Physiological Measurements (IMT), Department of Biomedical Engineering, Linköping University, Linköping, Sweden;2. Faculty of Polytechnic, Mons University, Mons, Belgium;3. Department of Electrical and Information Technology, Center for Integrative Electrocardiology, Lund University, Lund, Sweden;1. Servei d’Epidemiologia, Agència de Salut Pública de Barcelona, Barcelona, España;2. Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Barcelona, España;3. Departamento de Dermatología, Hospital de la Santa Creu i Sant Pau, Barcelona, España;4. Institut Universitari de Salut Mental, Universitat Ramon Llull, Barcelona, España;5. Societat de Prevenció FREMAP, Barcelona, España;6. Gerència, Agència de Salut Pública de Barcelona, Barcelona, España;1. State Key Laboratory for Manufacturing Systems Engineering, Xi’an Jiaotong University, 710054, China;2. School of Mechanical Engineering, University of Leeds, LS2 9JT, UK;1. Institute of Biomedical Engineering, National Taiwan University, Taiwan, ROC;2. Department of Electrical Engineering, Fu Jen Catholic University, Taiwan, ROC;3. Department of Orthopaedic Surgery, School of Medicine, National Taiwan University, Taiwan, ROC;4. Department of Physical Therapy, China Medical University, Taiwan, ROC;5. Department of Orthopaedic Surgery, China Medical University Hospital, Taiwan, ROC |
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| Abstract: | ![]()
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 30 Hz 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 (p < 10−3) muscular power was generated by FMS (23.8 ± 9.1 W [mean ± SD]) than by FES (11.3 ± 11.3 W). Additionally, significantly more (p < 10−6) work was produced by FMS than by FES (4.413 ± 2.209 kJ vs. 0.974 ± 1.269 kJ). The increase in the work was paralleled by a significant prolongation of time to cycling failure (181.8 ± 33.4 s vs. 87.0 ± 54.0 s, respectively, p < 10−5). 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. |
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| Keywords: | Magnetic and electrical stimulation Rehabilitation Torque Power Pain Fatigue |
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