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The Differences in Gait Pattern Between Dancers and Non-Dancers

Published online by Cambridge University Press:  05 May 2011

C. -W. Lung*
Affiliation:
Institute of Biomedical Engineering, National Yang-Ming University, Taipei, Taiwan 11221, R.O.C.
J. -S. Chern*
Affiliation:
Department of Occupational Therapy, Chang Gung University, Tao-Yuan, Taiwan 33302, R.O.C.
L. -F. Hsieh*
Affiliation:
Department of Physical Medicine and Rehabilitation, Shin Kong Wu Ho-Su Memorial Hospital, Taipei, Taiwan 11101, R.O.C.
S. -W. Yang*
Affiliation:
Institute of Biomedical Engineering, National Yang-Ming University, Taipei, Taiwan 11221, R.O.C. Department of Education and Research, Taipei City Hospital, Taipei, Taiwan 10341, R.O.C.
*
* Ph.D.
** Assistant Professor
*** M.D.
**** Associate Professor, corresponding author
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Abstract

Students in dancing department routinely perform hours of dancing every day. Extreme ankle posture can subject the ankle of the dancers to high stress and can significantly increase the mobility of the ankle. This causes ankle sprain which occurs frequently during daily walking. Measurements of the ground reaction force (GRF) and the center of pressure (CoP) provide useful variables to analyze the walking patterns of dancers, which might help understand the causes of ankle sprain. The aims of this work were (1) to investigate the differences in gait patterns between dancers and non-dancers and (2) to explore the gait characteristics in dancers. Thirteen students in dancing department and twenty age-matched normal healthy subjects were recruited. All subjects were requested to walk along a 10-meter walkway. Results showed that the dancers have greater medial shear force of the GRF, and decreased the CoP velocity during the pre-swing phase, delayed peak-CoP velocity occurrence during the mid-stance, and straighter CoP trajectory through the forefoot at push off. The intense and demanding dancing activities change the walking pattern of dancers, which may lead to higher chance of getting ankle sprain.

Type
Articles
Copyright
Copyright © The Society of Theoretical and Applied Mechanics, R.O.C. 2008

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