Abstract
The walking duration of gait restoration systems that use functional electrical stimulation (FES) is severely limited by the rapid onset of muscle fatigue. Alternatively, fully actuated orthoses can also be employed to restore walking in paraplegia. However, due to the high power consumption of electric motors the walking duration of such devices are limited by the charge of the batteries. This paper proposes that a hybrid system, which uses FES and an actuated orthosis, is capable of achieving greater walking durations than an FES only system and more energetically efficient than a lower-limb exoskeleton. This is illustrated through results of optimizations of a musculoskeletal gait model for three actuation cases: FES only, electric motors only, and a hybrid system. The presented results illustrate that a hybrid system may be capable of greater walking durations than FES-based systems while using half the energy of a lower-limb exoskeleton.
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References
The National SCI Statistical Center, Spinal cord injury (SCI) facts and figures at a glance (2014)
W. Durfee, Gait restoration by functional electrical stimulation, in Climbing and Walking Robots (Springer, 2006), pp. 19–26
R. Farris, H. Quintero, M. Goldfarb, Preliminary evaluation of a powered lower limb orthosis to aid walking in paraplegic individuals. IEEE Trans. Neural Syst. Rehabil. Eng. 19(6), 652–659 (2011)
A. Esquenazi, M. Talaty, A. Packel, M. Saulino, The ReWalk powered exoskeleton to restore ambulatory function to individuals with thoracic-level motor-complete spinal cord injury. Am. J. Phys. Med. Rehabil. 91(11), 911–921 (2012)
P. Neuhaus, J. Noorden, T. Craig, T. Torres, J. Kirschbaum, J. Pratt, Design and evaluation of mina: a robotic orthosis for paraplegics, in IEEE ICORR, (2011), pp. 1–8
K. Strausser, H. Kazerooni, The development and testing of a human machine interface for a mobile medical exoskeleton, in IEEE/RSJ IROS (2011), pp. 4911–4916
A. del Ama, Á. Gil-Agudo, J. Pons, J. Moreno, Hybrid FES-robot cooperative control of ambulatory gait rehabilitation exoskeleton. J. NeuroEng. Rehabil. 11(1), 27 (2014)
K. Ha, S. Murray, M. Goldfarb, An approach for the cooperative control of fes with a powered exoskeleton during level walking for persons with paraplegia. IEEE Trans. Neural Syst. Rehabil. Eng. (2015)
N. Kirsch, N.A. Alibeji, N. Sharma, Optimized control of different actuation strategies for FES and orthosis aided gait, in Proceedings of the ASME DSCC (2013)
N. Sharma, V. Mushahwar, R. Stein, Dynamic optimization of FES and orthosis-based walking using simple models. IEEE Trans. Neural Syst. Rehabil. Eng. 22(1), 114–126 (2014)
M. Goldfarb, K. Korkowski, B. Harrold, W. Durfee, Preliminary evaluation of a controlled-brake orthosis for FES-aided gait. IEEE Trans. Neural Syst. Rehabil. Eng. 11(3), 241–248 (2003)
D. Popović, R. Stein, M. Oğuztöreli, M. Lebiedowska, S. Jonić, Optimal control of walking with functional electrical stimulation: a computer simulation study. IEEE Trans. Rehabil. Eng. 7(1), 69–79 (1999)
F. Anderson, M. Pandy, Dynamic optimization of human walking. J. Biomech. Eng.-T. ASME 123(5), 381–390 (2001)
H. Geyer, H. Herr, A muscle-reflex model that encodes principles of legged mechanics produces human walking dynamics and muscle activities. IEEE Trans. Neural Syst. Rehabil. Eng. 18(3), 263–273 (2010)
D. Winter, A. Patla, J. Frank, S. Walt, Biomechanical walking pattern changes in the fit and healthy elderly. Phys. Ther. 70(6), 340–347 (1990)
K. Klose, P. Jacobs, J. Broton, R. Guest, B. Needham-Shropshire, N. Lebwohl, M. Nash, B. Green, Evaluation of a training program for persons with SCI paraplegia using the parastep 1 ambulation system: part 1. ambulation performance and anthropometric measures. Arch. Phys. Med. Rehabil. 78(8), 789–93 (1997)
J. Reilly, Applied bioelectricity: from electrical stimulation to electropathology (Springer Science & Business Media, 2012)
H. Quintero, R. Farris, W. Durfee, M. Goldfarb, Feasibility of a hybrid-FES system for gait restoration in paraplegics, in IEEE EMBC (2010), pp. 483–486
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This work was funded in part by the National Science Foundation, and the University of Pittsburghs Competitive Medical Research Fund and Central Research Development Fund.
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Kirsch, N.A., Alibeji, N.A., Redfern, M., Sharma, N. (2017). Dynamic Optimization of a Hybrid Gait Neuroprosthesis to Improve Efficiency and Walking Duration: A Simulation Study. In: Ibáñez, J., González-Vargas, J., Azorín, J., Akay, M., Pons, J. (eds) Converging Clinical and Engineering Research on Neurorehabilitation II. Biosystems & Biorobotics, vol 15. Springer, Cham. https://doi.org/10.1007/978-3-319-46669-9_113
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DOI: https://doi.org/10.1007/978-3-319-46669-9_113
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