Plantar sensation, plantar pressure, and postural stability alterations and effects of visual status in older adults.

IF 1.3 4区医学 Q4 NEUROSCIENCES Somatosensory and Motor Research Pub Date : 2022-03-01 Epub Date: 2021-10-31 DOI:10.1080/08990220.2021.1994940

Banu Unver, Nilgun Bek

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引用次数: 4

Abstract

Abstract Purpose Ageing leads to plantar sensation and pressure alterations and poor postural control. The aim of this study was to compare the plantar sensation and static plantar pressure distribution between young and older adults. A secondary aim was to investigate the effect of ageing and visual status on postural stability. Materials and methods Forty older subjects and 43 young adult individuals participated in the study. Plantar light touch sensation was evaluated using Semmes–Weinstein monofilaments. Static plantar pressure and postural stability were assessed with the WinTrack® Pedobarography device. Results Plantar sensation thresholds of the older individuals were higher compared to the young in all plantar regions (p < 0.001). The plantar contact area was greater in older individuals (p < 0.001). Maximum plantar pressure of midfoot was higher and maximum plantar pressure of the rearfoot and whole foot was less in older individuals during quiet stance (p < 0.05). The main effects of group and visual condition were significant for mean latero-lateral and antero-posterior sway speed with large effect sizes (p < 0.05). Conclusions The sensation of all plantar regions reduced, the rearfoot plantar pressure decreased, and the midfoot plantar pressure increased in older individuals compared to young. Postural stability was reduced in the older individuals, and their postural control was more affected by the eliminated visual information compared to the young. Increased plantar contact area and midfoot plantar pressure may be related to decreased MLA height in older individuals. Older individuals may need visual information more to maintain postural control because of reduced plantar sensation.

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老年人足底感觉、足底压力和体位稳定性的改变及视觉状态的影响。

目的:衰老导致足底感觉和压力改变以及姿势控制不良。本研究的目的是比较年轻人和老年人的足底感觉和静态足底压力分布。第二个目的是研究年龄和视觉状态对姿势稳定性的影响。材料与方法:40名老年人和43名年轻人参与了研究。用Semmes-Weinstein单丝评价足底轻触感。使用WinTrack®足底造影设备评估静足底压力和姿势稳定性。结果:老年人各足底感觉阈值均高于年轻人(p p p p)。结论:老年人各足底感觉阈值均较年轻人降低，后脚足底压力降低，中脚足底压力升高。与年轻人相比，老年人的姿势稳定性降低，他们的姿势控制更受视觉信息消除的影响。老年人足底接触面积和足中部压力增加可能与MLA高度降低有关。由于足底感觉的减少，老年人可能更需要视觉信息来维持姿势控制。

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Somatosensory and Motor Research 医学-神经科学

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>12 weeks

期刊介绍： Somatosensory & Motor Research publishes original, high-quality papers that encompass the entire range of investigations related to the neural bases for somatic sensation, somatic motor function, somatic motor integration, and modeling thereof. Comprising anatomical, physiological, biochemical, pharmacological, behavioural, and psychophysical studies, Somatosensory & Motor Research covers all facets of the peripheral and central processes underlying cutaneous sensation, and includes studies relating to afferent and efferent mechanisms of deep structures (e.g., viscera, muscle). Studies of motor systems at all levels of the neuraxis are covered, but reports restricted to non-neural aspects of muscle generally would belong in other journals.