Journal of Rehabilitation Research & Development (JRRD)

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Volume 51 Number 2, 2014
   Pages 229 — 244

Abstract — Sensor-based hip control with hybrid neuroprosthesis for walking in paraplegia

Curtis S. To, PhD;1 Rudi Kobetic, MS;1* Thomas C. Bulea, PhD;2 Musa L. Audu, PhD;1–2 John R. Schnellenberger, MS;1 Gilles Pinault, MD;1 Ronald J. Triolo, PhD1–3

1Louis Stokes Cleveland Department of Veterans Affairs Medical Center, Cleveland, OH; Departments of 2Biomedical Engineering and 3Orthopaedics, Case Western Reserve University, Cleveland, OH

Abstract — The objectives of this study were to test whether a hybrid neuroprosthesis (HNP) with an exoskeletal variable-­constraint hip mechanism (VCHM) combined with a functional neuromuscular stimulation (FNS) controller can maintain upright posture with less upper-limb support and improve gait speed as compared with walking with either an isocentric reciprocating gait orthosis (IRGO) or FNS only. The results show that walking with the HNP significantly reduced forward lean in FNS-only walking and the maximum upper-limb forces by 42% and 19% as compared with the IRGO and FNS-only gait, respectively. Walking speed increased significantly with VCHM as compared with 1:1 reciprocal coupling and by 15% when using the sensor-based FNS controller as compared with HNP with fixed baseline stimulation without the controller active.

Key words: exoskeleton, functional neuromuscular stimulation, gait, hybrid neuroprosthesis, reciprocating gait orthosis, sensor-based hip control, spinal cord injury, trunk support, walking, walking in paraplegia.

View HTML ¦ View PDF ¦ Contents Vol. 51, No.2
This article and any supplementary material should be cited as follows:
To CS, Kobetic R, Bulea TC, Audu ML, Schnellenberger JR, Pinault G, Triolo RJ. Sensor-based hip control with hybrid neuroprosthesis for walking in paraplegia. J Rehabil Res Dev. 2014;51(2):229–44.

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Last Reviewed or Updated  Thursday, May 8, 2014 11:29 AM

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