Analysis of ankle muscle activity: A study on static balance with eyes closed and high-heeled shoes

Q2 Health Professions Foot Pub Date : 2024-05-19 DOI:10.1016/j.foot.2024.102100

Maristella Borges Silva , Luciane Fernanda Rodrigues Martinho Fernandes , Rhaíra Helena Caetano e Souza , Angela Abreu Rosa de Sá , Eduardo Lázaro Martins Naves

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Abstract

Background

Changes in sensory afferent interfere with the control of postural stability by the central nervous system. Wearing high-heeled shoes is an example of an external disturbance that changes sensory inputs and results in several postural adjustments to control stability. Thus, our purpose is to investigate the influence of high-heeled shoes and visual absence on maintenance of static balance and on ankle muscle activity among young women. Our hypothesis is that the combination of high-heeled shoes with visual absence lead to an increase of postural sway and of levels of activation of the stabilizing ankle muscles.

Methods

Nine volunteers remained in an unrestrained erect posture on a force platform for collecting of stabilometric and electromyographic parameters in four bipodal conditions: barefoot with open eyes, barefoot with closed eyes, with high heels and open eyes and with high heels and closed eyes.

Results

When comparing the experimental condition open and closed eyes with high heels, there were significant differences for all stabilometric variables, except for the confidence ellipse area. Statistical differences were found for the medial gastrocnemius muscle in all comparison pairs with high heels.

Conclusion

The wearing high-heeled shoes showed to be the most influencing disturbance on static balance. Our findings suggest ankle muscle activity is adapted according to changes of the center of pressure sway and the wearing of high heels changes the muscle activation and postural sway.

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踝关节肌肉活动分析：闭眼穿高跟鞋时的静态平衡研究

背景感觉传入的变化会干扰中枢神经系统对姿势稳定性的控制。穿高跟鞋就是一个外部干扰的例子，它改变了感觉输入，并导致多次姿势调整以控制稳定性。因此，我们的目的是研究高跟鞋和视觉缺失对年轻女性保持静态平衡和踝关节肌肉活动的影响。我们的假设是，高跟鞋和视觉缺失的结合会导致姿势摇摆和稳定踝关节肌肉的激活水平增加。方法九名志愿者在力平台上保持不受约束的直立姿势，在四种双足条件下收集稳定测量和肌电参数：睁眼赤足、闭眼赤足、睁眼穿高跟鞋和闭眼穿高跟鞋。结果当比较睁眼和闭眼穿高跟鞋的实验条件时，除置信椭圆面积外，所有稳定测量变量均存在显著差异。结论穿高跟鞋对静态平衡的影响最大。我们的研究结果表明，踝关节肌肉活动会根据压力中心摇摆的变化而调整，穿高跟鞋会改变肌肉激活和姿势摇摆。

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来源期刊

Foot Health Professions-Podiatry

CiteScore

2.00

自引率

0.00%

发文量

期刊介绍： The Foot is an international peer-reviewed journal covering all aspects of scientific approaches and medical and surgical treatment of the foot. The Foot aims to provide a multidisciplinary platform for all specialties involved in treating disorders of the foot. At present it is the only journal which provides this inter-disciplinary opportunity. Primary research papers cover a wide range of disorders of the foot and their treatment, including diabetes, vascular disease, neurological, dermatological and infectious conditions, sports injuries, biomechanics, bioengineering, orthoses and prostheses.