Rotated balance in humans due to repetitive rotational movement

Zakynthinaki, María S. and Madera Milla, J. and Lopez Diaz de Durana, Alfonso and Cordente Martinez, Carlos Alberto and Rodríguez Romo, Gabriel and Sillero Quintana, Manuel and Sampedro Molinuevo, Javier (2010). Rotated balance in humans due to repetitive rotational movement. "Chaos", v. 20 (n. 1); pp.. ISSN 1054-1500. https://doi.org/10.1063/1.3335460.

Description

Title: Rotated balance in humans due to repetitive rotational movement
Author/s:
  • Zakynthinaki, María S.
  • Madera Milla, J.
  • Lopez Diaz de Durana, Alfonso
  • Cordente Martinez, Carlos Alberto
  • Rodríguez Romo, Gabriel
  • Sillero Quintana, Manuel
  • Sampedro Molinuevo, Javier
Item Type: Article
Título de Revista/Publicación: Chaos
Date: March 2010
ISSN: 1054-1500
Volume: 20
Subjects:
Faculty: Facultad de Ciencias de la Actividad Física y del Deporte (INEF) (UPM)
Department: Deportes
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

We show how asymmetries in the movement patterns during the process of regaining balance after perturbation from quiet stance can be modeled by a set of coupled vector fields for the derivative with respect to time of the angles between the resultant ground reaction forces and the vertical in the anteroposterior and mediolateral directions. In our model, which is an adaption of the model of Stirling and Zakynthinaki (2004), the critical curve, defining the set of maximum angles one can lean to and still correct to regain balance, can be rotated and skewed so as to model the effects of a repetitive training of a rotational movement pattern. For the purposes of our study a rotation and a skew matrix is applied to the critical curve of the model. We present here a linear stability analysis of the modified model, as well as a fit of the model to experimental data of two characteristic “asymmetric” elite athletes and to a “symmetric” elite athlete for comparison. The new adapted model has many uses not just in sport but also in rehabilitation, as many work place injuries are caused by excessive repetition of unaligned and rotational movement patterns.

More information

Item ID: 8419
DC Identifier: http://oa.upm.es/8419/
OAI Identifier: oai:oa.upm.es:8419
DOI: 10.1063/1.3335460
Official URL: http://chaos.aip.org/resource/1/chaoeh/v20/i1/p013118_s1?isAuthorized=no
Deposited by: Memoria Investigacion
Deposited on: 24 Aug 2011 09:41
Last Modified: 20 Apr 2016 17:13
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