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A comparison of the efficacy of textured insoles on balance performance in older people with versus without plantar callosities

Asgari, Narjes, Yeowell, Gillian ORCID logoORCID: https://orcid.org/0000-0003-3872-9799 and Sadeghi-Demneh, Ebrahim (2022) A comparison of the efficacy of textured insoles on balance performance in older people with versus without plantar callosities. Gait and Posture, 94. pp. 217-221. ISSN 0966-6362

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Abstract

Background: Textured insoles have been suggested to enhance foot sensation, which contributes to controlling upright balance. However, the interaction between plantar callosity and the textured surface has not been studied. Research question: Firstly, to compare the efficacy of textured insoles on balance performance and foot position sense between two groups of older people: one group had plantar callosity, and the other did not. Secondly, to investigate the efficacy of textured insoles within each study group. Methods: Thirty older people with a history of falls (15 with plantar callosity and 15 without callosity) participated in this study. All participants underwent assessments of postural sway on a force plate, joint position sensation of the ankle with a slope box, and mobility using the "Timed Up and Go" test under three insole surface conditions: 1) smooth (control), 2) placebo and 3) textured surface. Two-way analyses of variance were used to compare the outcomes of the two groups and three conditions. Results: Older people with plantar callosity had worse ankle joint position sense and slower antero-posterior and mediolateral postural sway velocity than their peers who did not have plantar callosity. The textured insoles improved ankle joint position sense and mobility regardless of callus status in the plantar surface of older peoples’ feet. The insole-callosity interaction was not significant for any study outcome. Significance: Textured insoles could be beneficial to older people with and without callosity as they have shown immediate improvements in ankle joint position sense and mobility.

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