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Rivista di Medicina, Traumatologia e Psicologia dello Sport

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The Journal of Sports Medicine and Physical Fitness 2017 Dec 15

DOI: 10.23736/S0022-4707.17.08029-X


lingua: Inglese

Effect of textured insoles on postural control during static upright posture following lower limb muscle fatigue

Francesco PALAZZO 1, 2 , Alessandra NARDI 3, Virginia TANCREDI 1, 2, 4, Alfio CARONTI 1, Gianpaolo SCALIA TOMBA 3, Pietro LEBONE 1, Elvira PADUA 2, Giuseppe ANNINO 1, 2, 4,

1 Department of Systems Medicine, School of Human Movement Science, University of Rome ‘‘Tor Vergata’’, Rome, Italy; 2 Department of Human Science and Promotion of the Quality of Life, San Raffaele Online University, Rome, Italy; 3 Department of Mathematics, University of Rome "Tor Vergata", Rome, Italy; 4 Department of Systems Medicine, University of Rome ‘‘Tor Vergata’’, Rome, Italy


BACKGROUND: The purpose of this study was to assess the effects of textured insoles on static upright posture before and after lower limb muscle fatigue. Textured insoles used contained small and non-deformable pebbles of various sizes that are able to stimulate a major number of mechanoreceptors. It was inserted inside footwear.
METHODS: Ten healthy young adults participated in the study (mean age 26.1 ± 3.07 years). They were asked to stand on a force platform in four sensory states: vision, no vision, with and without natural plantar stimulation. For each sensory state the subjects underwent a single 30-second trial in pre-fatigue and post-fatigue conditions. Muscle fatigue was induced by 60 seconds of continuous jumping. Centre of Pressure displacement, sway velocity, antero-posterior and medio- lateral sway velocity were measured using force platform.
RESULTS: Textured insoles had a stabilizing effect on balance compared to control insoles. Textured insoles significantly reduced CoPDISP and VA/P levels in closed eyes pre-fatigue condition. Post-fatigue all postural parameters improved in both vision and no vision conditions.
CONCLUSIONS: Textured insoles with rigid stimulation significantly improved CoPDISP, independently of vision, supplying relevant and complete sensory information and improving balance in fatigue conditions.

KEY WORDS: Textured insoles - Plantar mechanoreceptors - Muscle fatigue - Balance - Postural control

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Publication History

Article first published online: December 15, 2017
Manuscript accepted: December 5, 2017
Manuscript revised: November 23, 2017
Manuscript received: August 2, 2017

Per citare questo articolo

Palazzo F, Nardi A, Tancredi V, Caronti A, Scalia Tomba G, Lebone P, et al. Effect of textured insoles on postural control during static upright posture following lower limb muscle fatigue. J Sports Med Phys Fitness 2017 Dec 15. DOI: 10.23736/S0022-4707.17.08029-X

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