Technical Brief

Developing a Classification Algorithm for Plantarflexor Actuation Timing of a Powered Ankle–Foot Orthosis1

[+] Author and Article Information
Mazharul Islam, Elizabeth T. Hsiao-Wecksler

Mechanical Science and Engineering,
University of Illinois at Urbana-Champaign,
Urbana, IL 61801

DOI: 10.1115/1.4033779Manuscript received March 1, 2016; final manuscript received March 17, 2016; published online August 1, 2016. Editor: William Durfee.

J. Med. Devices 10(3), 030961 (Aug 01, 2016) (2 pages) Paper No: MED-16-1096; doi: 10.1115/1.4033779 History: Received March 01, 2016; Revised March 17, 2016

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Kuo, A. D. , 2002, “ Energetics of Actively Powered Locomotion Using the Simplest Walking Model,” ASME J. Biomech. Eng., 124(1), pp. 113–120. [CrossRef]
Malcolm, P. , Derave, W. , Galle, S. , and De Clercq, D. , 2013, “ A Simple Exoskeleton That Assists Plantarflexion Can Reduce the Metabolic Cost of Human Walking,” PLoS One, 8(2), p. 56137. [CrossRef]
Sawicki, G. S. , Domingo, A. , and Ferris, D. P. , 2005, “ The Effects of Powered Ankle-Foot Orthoses on Joint Kinematics and Muscle Activation During Walking in Individuals With Incomplete Spinal Cord Injury,” J. Neuroeng. Rehabil., 3(1), p. 3. [CrossRef]
Li, D. Y. , Becker, A. , Shorter, K. A. , Bretl, T. , and Hsiao-Wecksler, E. T. , 2011, “ Estimating System State During Human Walking With a Powered Ankle-Foot Orthosis,” IEEE/ASME Trans. Mechatronics, 16(5), pp. 835–844. [CrossRef]


Grahic Jump Location
Fig. 1

Ankle angle at different actuation timings for PPAFO. Positive/negative values indicate dorsiflexion/plantarflexion.




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