Effect of timing of hip extension assistance during loaded walking with a soft exosuit.

Journal: Journal of neuroengineering and rehabilitation
Published Date: Oct 3, 2016

Abstract

BACKGROUND: Recent advances in wearable robotic devices have demonstrated the ability to reduce the metabolic cost of walking by assisting the ankle joint. To achieve greater gains in the future it will be important to determine optimal actuation parameters and explore the effect of assisting other joints. The aim of the present work is to investigate how the timing of hip extension assistance affects the positive mechanical power delivered by an exosuit and its effect on biological joint power and metabolic cost during loaded walking. In this study, we evaluated 4 different hip assistive profiles with different actuation timings: early-start-early-peak (ESEP), early-start-late-peak (ESLP), late-start-early-peak (LSEP), late-start-late-peak (LSLP).

Authors

  • Ye Ding
  • Fausto A Panizzolo
    John A. Paulson School of Engineering and Applied Sciences, Harvard University, 29 Oxford Street, Cambridge, MA, 02138, USA.
  • Christopher Siviy
    John A. Paulson School of Engineering and Applied Sciences, Harvard University, 29 Oxford Street, Cambridge, MA, 02138, USA.
  • Philippe Malcolm
    Department of Movement and Sports Sciences, Ghent University, Ghent, Belgium. philippe.malcolm@ugent.be.
  • Ignacio Galiana
  • Kenneth G Holt
  • Conor J Walsh
    John A. Paulson School of Engineering and Applied Sciences, Harvard University, 29 Oxford Street, Cambridge, MA, 02138, USA. walsh@seas.harvard.edu.

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