NDLI: Locomotor adaptations following repeated waist-pull perturbations

Content Provider	IEEE Xplore Digital Library
Author	Martelli, D. Vashsita, V. Micera, S. Agrawal, S.K.
Copyright Year	2015
Description	Author affiliation: Scuola Superiore Sant'Anna, BioRobotics Inst., Pisa, Italy (Martelli, D.; Micera, S.) \|\| Mech. Eng. Dept., Columbia Univ., New York, NY, USA (Vashsita, V.; Agrawal, S.K.)
Abstract	Falls are acknowledged as one of the most serious problems in the elderly. In order to develop effective interventions to reduce the fall risk, perturbation-based training programs are being adopted. The exposure to repeated unexpected perturbations can modify proactive strategies to control dynamical gait stability and decrease the risk of falling during unpreventable events encountered in everyday life. The aim of this study was to analyze to what extent healthy adult gait patterns would be affected by exposure to repeated unexpected force-controlled antero-posterior waist-pull perturbations. Results showed that repeated waist-pull perturbations produced short-term after effects able to modify stability in the direction of the applied perturbations. In particular, subjects increased their step length, the oscillation of the extrapolated center of mass along the antero-posterior and vertical direction, the antero-posterior Margin of Stability and the range of angular momentum in the sagittal plane. Future experiments will be conducted to verify if the present results can be confirmed with elderly subjects in order to finally improve their dynamical stability during unperturbed walking.
Starting Page	636
Ending Page	641
File Size	341660
Page Count	6
File Format	PDF
ISSN	19457901
e-ISBN	9781479918089
DOI	10.1109/ICORR.2015.7281272
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-08-11
Publisher Place	Singapore
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Legged locomotion Motor adaptation Force Stability analysis Dynamical stability Locomotion and manipulation assistance Oscillators Training Walking Senior citizens Rehabilitation robotics Rehabilitation and assistive robotics Waist-pull perturbations Balance
Content Type	Text
Resource Type	Article
Subject	Rehabilitation Control and Systems Engineering Electrical and Electronic Engineering

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