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Contribution des afférences tactiles plantaires au maintien de l'équilibre. Effets du port de semelles à picots sur le contrôle postural quasi-statique et la sensibilité cutanée plantaire de la personne âgée.

Estelle Palluel 1
1 TIMC-SPM - Santé, Plasticité, Motricité
TIMC - Techniques de l'Ingénierie Médicale et de la Complexité - Informatique, Mathématiques et Applications, Grenoble - UMR 5525
Abstract : The prevention of falls in elderly is a major focus of medical research. Although the mechanisms underlying the effect of aging on the postural control system are varied and complex, impaired sensory function is likely to be an important contributing factor to the deterioration in postural balance and may increase the likelihood of falling. Age-related loss of cutaneous sensation, in particular, is pervasive, and appears to correlate with impaired postural control. As the feet interface directly with the ground, cutaneous cues provide relevant information about the support surface properties, and about the body position in reference to verticality. The purpose of this study was to explore the effects of a mechanical stimulation of the plantar mechanoreceptors, by means of spikes within the footwear insole, on postural stability. Our results provide evidence that applying a mechanical stimulation reduce, to some extent, postural sway in most of the young adults, the elderly and the patients with diabetic neuropathy. The benefits are not correlated with the cutaneous sensitivity or the initial postural performances of the subject. There was also a significant inter-individual variability. The enriched sensory context provided by the spikes is an original method of stimulation that may be appropriated for subjects with balance problems. This stimulation may reproduce, to some extent, the effects of a massage without requiring a systematic therapeutic intervention. Further research is needed to find the best compromise between the duration, the intensity, the frequency of the stimulation and the comfort of the insoles.
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https://tel.archives-ouvertes.fr/tel-00343440
Contributor : Estelle Palluel <>
Submitted on : Monday, December 1, 2008 - 3:57:15 PM
Last modification on : Monday, December 7, 2020 - 12:30:02 PM
Long-term archiving on: : Saturday, November 26, 2016 - 2:37:57 AM

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  • HAL Id : tel-00343440, version 1

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Estelle Palluel. Contribution des afférences tactiles plantaires au maintien de l'équilibre. Effets du port de semelles à picots sur le contrôle postural quasi-statique et la sensibilité cutanée plantaire de la personne âgée.. Sciences du Vivant [q-bio]. Université Joseph-Fourier - Grenoble I, 2008. Français. ⟨tel-00343440⟩

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