The effect of a textured insole on anticipatory postural adjustments.

IF 1.3 4区医学 Q4 NEUROSCIENCES

Somatosensory and Motor Research Pub Date : 2021-09-01 Epub Date: 2021-05-24 DOI:10.1080/08990220.2021.1918659

Etem Curuk, Alexander S Aruin

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引用次数: 3

Abstract

Purpose: To obtain preliminary data on the effect of a textured insole on postural control.

Methods: Nine healthy subjects were exposed to external perturbations applied to their shoulders while standing with or without a single textured insole. Body weight distribution and bilateral electromyographic activity (EMG) of trunk and leg muscles were recorded. Onsets of EMG activity of muscles were calculated and analyzed within the interval typical for anticipatory postural adjustments.

Results: When a textured insole was provided under one foot, subjects shifted their body weight towards the contralateral foot. With no insole, the anticipatory onsets of EMG activity of the left and right muscles were symmetrical; when a textured insole was used, the EMG onsets of the muscles on the contralateral side of the body were seen earlier as compared to the insole side. This early activation was more pronounced in the trunk muscles (p < 0.05).

Conclusions: Using a single textured insole under one-foot induced asymmetry of anticipatory onsets of EMG activity in healthy subjects. The outcome highlights the importance of investigating the role of a single textured insole in control of vertical posture and provides a foundation for future studies focussed on improvement of postural control in individuals with body asymmetry due to unilateral weakness.

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质地鞋垫对预期姿势调整的影响。

目的:获得纹理鞋垫对姿势控制影响的初步数据。方法:9名健康受试者在穿着或不穿单一纹理鞋垫站立时暴露于施加于肩部的外部扰动。记录体重分布及躯干、腿部肌肉的双侧肌电活动。在预期体位调整的典型间隔内计算和分析肌肉肌电活动的发作。结果:当在一只脚下提供有纹理的鞋垫时，受试者将体重转移到对侧脚。无鞋垫时，左右肌肌电活动的预期发作是对称的;当使用有纹理的鞋垫时，与鞋垫一侧相比，身体对侧肌肉的肌电图发作时间更早。这种早期激活在躯干肌肉中更为明显(p)。结论:在健康受试者中，在单足下使用单一纹理鞋垫会导致肌电图活动的预期不对称。该结果强调了研究单一纹理鞋垫在控制垂直姿势中的作用的重要性，并为未来的研究提供了基础，重点是改善由于单侧虚弱而导致的身体不对称个体的姿势控制。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Somatosensory and Motor Research 医学-神经科学

自引率

0.00%

发文量

审稿时长

>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.