Abstract
Balance-recovery stepping is often necessary for both a human and humanoid robot to avoid a fall by taking a single step or multiple steps after an external perturbation. The determination of where to step to come to a complete stop has been studied, but little is known about the strategy for initiation of forward motion from the static position following such a step. The goal of this study was to examine the human strategy for stepping by moving the back foot forward from a static, double-support position, comparing parameters from normal step length (SL) to those from increasing SLs to the point of step failure, to provide inspiration for a humanoid control strategy. Healthy young adults instrumented with joint reflective markers executed a prescribed-length step from rest while marker positions and ground reaction forces (GRFs) were measured. The participants were scaled to the Gait2354 model in opensim software to calculate body kinematic and joint kinetic parameters, with further post-processing in matlab. With increasing SL, participants reduced both static and push-off back-foot GRF. Body center of mass (CoM) lowered and moved forward, with additional lowering at the longer steps, and followed a path centered within the ...Continue Reading
References
Aug 1, 1990·IEEE Transactions on Bio-medical Engineering·S L DelpJ M Rosen
Jan 1, 1989·Journal of Biomechanics·G T Yamaguchi, F E Zajac
Jan 1, 1982·Journal of Biomechanics·M C DoP Brenguier
Jun 1, 1995·Journal of Biomechanics·J J Eng, D A Winter
Mar 3, 1998·American Journal of Physical Medicine & Rehabilitation·D C KerriganU Della Croce
Jan 9, 1999·Journal of Biomechanics·Y C PaiT A Hanke
Sep 7, 1999·Journal of Biomechanics·E T Hsiao, S N Robinovitch
Sep 28, 2000·Journal of Biomechanics·K Iqbal, Y Pai
Mar 27, 2001·Computer Methods in Biomechanics and Biomedical Engineering·FRANK C. Anderson, MARCUS G. Pandy
Jun 27, 2001·Journal of Biomechanics·L A WojcikN B Alexander
Jun 9, 2004·Clinical Biomechanics·Wendy J HurdLynn Snyder-Mackler
Nov 3, 2004·Journal of Biomechanics·A L HofW E Sinke
Aug 5, 2005·The Journals of Gerontology. Series A, Biological Sciences and Medical Sciences·Michael L Madigan, Emily M Lloyd
Oct 21, 2006·Journal of Biomechanics·Ming WuYi-chung Pai
Jul 10, 2007·Human Movement Science·Arthur D Kuo
Aug 8, 2007·Journal of Electromyography and Kinesiology : Official Journal of the International Society of Electrophysiological Kinesiology·Elizabeth T Hsiao-Wecksler
Oct 16, 2007·Human Movement Science·At L Hof
Nov 21, 2007·IEEE Transactions on Bio-medical Engineering·Scott L DelpDarryl G Thelen
Dec 2, 2009·Experimental Brain Research·Mirjam PijnappelsJaap H van Dieën
Dec 15, 2010·Gait & Posture·Christopher P CartyRod Barrett
Sep 25, 2012·Journal of Biomechanics·Zohaib AftabPierre-Brice Wieber
Aug 21, 2013·Human Movement Science·Chantelle D Murnaghan, Stephen N Robinovitch
Dec 3, 2014·Human Movement Science·Kuangyou B ChengShih-Yu Kuo