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International Journal of Medical Sciences

.: Home > International Journal of Medical Sciences > 2004 > Volume 1 Number 1 > Tim L. A. Doyle1, Eric L. Dugan2, Brendan Humphries3, and Robert U. Newton1

Discriminating between elderly and young using a fractal dimension analysis of centre of pressure

Tim L. A. Doyle1, Eric L. Dugan2, Brendan Humphries3, and Robert U. Newton1
1School of Biomedical and Sports Science, Edith Cowan University, Perth, WA 6027, Australia 2Biomechanics Laboratory, Ball State University, Muncie, IN 47306, USA 3Faculty of Education, Health, and Science, Charles Darwin University, Darwin, NT 0815, Australia
Abstract :

The aim of this project was to evaluate the use of a new analysis technique, fractal dimension analysis, for quantification of quiet stance centre of pressure (COP). By using a fractal dimension analysis of COP, it might be possible to gain more information about control during quiet
stance than traditional analyses have previously allowed. The current project considered a group of young healthy participants and a group of elderly healthy participants to compare traditional measures of COP against a fractal dimension analysis of COP. Results indicated that both
types of analyses are able to distinguish between eyes open and eyes closed in the elderly group. However, the fractal dimension analysis more accurately detected differences between the participant groups when standing with their eyes closed. Based on these results it is suggested that
fractal dimension analysis is more informative about posture control than traditional measures. It is suggested that a fractal dimension type of analysis can be incorporated into clinical testing to identify patients with pathologies.

Keywords :
dynamical systems, quiet stance, non-linear, control, balance

Date Deposited : 03 Aug 2011 11:08

Last Modified : 04 Aug 2011 10:07

Official URL: http://www.medsci.org/archive

Volume 1, Number 1, - 2004 , ISSN 1449-1907

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