Altered EMG patterns in diabetic neuropathic and not neuropathic patients during step ascending and descending |
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| Institution: | 1. Department of Information Engineering, University of Padova, Italy;2. Department of Clinical Medicine and Metabolic Disease, University Polyclinic, Padova, Italy;1. Applied Health Sciences Doctoral Program, University of Manitoba, Winnipeg, Canada;2. College of Applied Medical Sciences, Qassim University, Saudi Arabia;3. Faculty of Kinesiology and Recreation Management, University of Manitoba, Winnipeg, Canada;4. Health, Leisure, and Human Performance Research Institute, University of Manitoba, Winnipeg, Canada;5. Department of Community Health Sciences, University of Manitoba, Winnipeg, Canada;6. Centre for Healthcare Innovation, University of Manitoba, Canada;1. Department of Information Engineering, Università Politecnica delle Marche, 60131 Ancona, Italy;2. Posture and Movement Analysis Laboratory, Italian National Institute of Health and Science on Aging (INRCA), 60131 Ancona, Italy;1. EA 7377 BIOTN, Laboratoire Analyse et Restauration du Mouvement, Université Paris-Est, Service de Rééducation Neurolocomotrice, AP-HP, Hôpitaux Universitaires Henri Mondor, Créteil, France;2. LISiN – Laboratorio di Ingegneria del Sistema Neuromuscolare, Dipartimento di Elettronica e Telecomunicazioni, Politecnico di Torino, Torino, Italy;1. Department of Mechanical Engineering, University of Wisconsin–Madison, United States;2. Department of Biomedical Engineering, University of Wisconsin–Madison, United States;3. Department of Orthopedics and Rehabilitation, University of Wisconsin–Madison, United States;4. Department of Mathematics & Engineering, University of Northwestern–St. Paul, United States;5. Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, United States |
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| Abstract: | Diabetic peripheral neuropathy (DPN) causes motor control alterations during daily life activities. Tripping during walking or stair climbing is the predominant cause of falls in the elderly subjects with DPN and without (NoDPN). Surface Electromyography (sEMG) has been shown to be a valid tool for detecting alterations of motor functions in subjects with DPN. This study aims at investigating the presence of functional alterations in diabetic subjects during stair climbing and at exploring the relationship between altered muscle activation and temporal parameter. Lower limb muscle activities, temporal parameters and speed were evaluated in 50 subjects (10 controls, 20 with DPN, 20 without DPN), while climbing up and down a stair, using sEMG, three-dimentional motion capture and force plates. Magnitude and timing of sEMG linear envelopes peaks were extracted. Level walking was used as reference condition for the comparison with step negotiation. sEMG, speed and temporal parameters revealed significant differences among all groups of patients. Results showed an association between earlier activation of lower limb muscles and reduced speed in subjects with DPN. Speed and temporal parameters significantly correlated with sEMG (p < 0.05). The findings of this study are encouraging and could be used to improve rehabilitation programs aiming at reducing falls risk in diabetic subjects. |
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| Keywords: | Diabetes mellitus Balance Diabetic neuropathies Step Electromyography |
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