Neuromuscular response of the trunk to inertial based sudden perturbations following whole body vibration exposure |
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Affiliation: | 1. Department of Rehabilitation, Sagamihara Chuo Hospital, 6-4-20, Fujimi, Chuo-ku, Sagamihara, Kanagawa, Japan;2. Department of Rehabilitation, Toho University Omori Medical Center, 6-11-1, Omori-Nishi, Ota-ku, Tokyo, Japan;3. Department of Exercise Physiology and Biomechanics, Faculty of Medicine, School of Medicine, Toho University, 5-21-16, Omori-Nishi, Ota-ku, Tokyo, Japan;4. Department of Physical Therapy, Tokyo University of Technology, 5-23-22, Nishi-Kamata, Ota-ku, Tokyo, Japan;5. Department of Exercise Physiology, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1, Horinouchi, Hachioji, Tokyo, Japan;6. Department of Rehabilitation, School of Allied Health Science, Kitasato University, 1-15-1, Kitasato, Minami-ku, Sagamihara, Kanagawa, Japan;1. Departments of Neurology, School of Medicine, University of Patras, Patras, Greece;2. Departments of Spinal Cord Lesions Rehabilitation, School of Medicine, University of Patras, Patras, Greece;3. Departments of Medical Physics, School of Medicine, University of Patras, Patras, Greece;1. School of Life Science, Faculty of Science, Engineering and Computing, Kingston University, London, UK;2. Faculty of Health Science and Education, Kingston University/St George''s University of London, UK;1. School of Health and Human Sciences, Southern Cross University, Lismore, NSW, Australia;2. Human Performance Laboratory, University of Calgary, Calgary, Alberta, Canada |
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Abstract: | The effects of whole body vibration exposure on the neuromuscular responses following inertial-based trunk perturbations were examined. Kinematic and surface EMG (sEMG) data were collected while subjects were securely seated on a robotic platform. Participants were either exposed to 10 min of vibration or not, which was followed by sudden inertial trunk perturbations with and without timing and direction knowledge. Amplitude of sEMG was analyzed for data collected during the vibration protocol, whereas the onset of sEMG activity and lumbar spine angle were analyzed for the perturbation protocol. Data from the vibration protocol did not show a difference in amplitude of sEMG for participants exposed to vibration and those not. The perturbation protocol data showed that those not exposed to vibration had a 14% faster muscle onset, despite data showing no difference in fatigue level. |
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Keywords: | Neuromuscular response Muscle Lumbar spine Sudden trunk loading EMG |
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