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Caractérisation Biomécanique de la cheville et analyse de l'équilibre du sujet agé en reprise d'autonomie

Abstract : Due to the ongoing aging process (e.g. one over 10 people in France is more than 75 years old); loss of autonomy has become a major public health issue. This socio-economical problem may be explained by the continuous need of acute information on the balance of elderly. In this manner, a deep analysis of ankle musculotendinous stiffness and posture may provide new insights on the neuromuscular mechanisms involved in maintaining upright stance, by means of appropriate biomechanical parameters. This work was funded by the National Research Agency (ANR-08-TECS MIRAS-009-04), and aimed at characterizing the elastic properties (i.e. musculotendinous stiffness) and balance in elderly subjects recovering their autonomy. Therefore, a global description of population profiles in a geriatric rehabilitation care unit was first carried out. Then to verify and improve the existing methods for ankle musculotendinous stiffness estimation ("Quick-Release" approach), a new method for the calculation foot inertial parameters was proposed and validated. Finally, a study of ankle stiffness and balance through a stabilometric approach was conducted on a sample of elderly patients. The results of this work proved to be useful in improving the methods for calculating ankle musculotendinous stiffness, while contributing to a better understanding of balance mechanisms in the elderly.
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Contributor : Amine El Helou Connect in order to contact the contributor
Submitted on : Friday, January 13, 2012 - 4:41:40 PM
Last modification on : Wednesday, October 27, 2021 - 2:11:56 PM
Long-term archiving on: : Saturday, April 14, 2012 - 2:32:31 AM


  • HAL Id : pastel-00659814, version 1


Amine El Helou. Caractérisation Biomécanique de la cheville et analyse de l'équilibre du sujet agé en reprise d'autonomie. Biomécanique []. Arts et Métiers ParisTech, 2011. Français. ⟨NNT : 2011ENAM0049⟩. ⟨pastel-00659814⟩



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