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Nonlinear Dynamics and Bifurcations in Postural Control on Rigid Surfaces and Rotational Balance Boards

[+] Author Affiliations
James R. Chagdes, Shirley Rietdyk, Jeffery M. Haddad, Howard N. Zelaznik, Arvind Raman

Purdue University, West Lafayette, IN

Paper No. SBC2012-80802, pp. 1075-1076; 2 pages
doi:10.1115/SBC2012-80802
From:
  • ASME 2012 Summer Bioengineering Conference
  • ASME 2012 Summer Bioengineering Conference, Parts A and B
  • Fajardo, Puerto Rico, USA, June 20–23, 2012
  • Conference Sponsors: Bioengineering Division
  • ISBN: 978-0-7918-4480-9
  • Copyright © 2012 by ASME

abstract

A balance board is an unstable platform which is currently used for training and rehabilitation to stabilize an individual’s upright posture. Models that examine how individuals remain upright while standing on an unstable surface are therefore needed to understand the mechanisms behind balance improvements. Most research in this area has focused on the fluctuations in posture about a static upright equilibrium using single-degree-of-freedom (1-DOF) inverted pendulum models [1–2]. While conceptually simple, these models nonetheless capture the stochastic, nonlinear and multiple timescale behavior of the fluctuations that are known to occur in human posture [1–3].

Copyright © 2012 by ASME

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