特定部位体感足矫形器突出旋钮高度对老年人姿势平衡的影响：一项剂量反应研究

IF 1.4 3区医学 Q4 ENGINEERING, BIOMEDICAL

Clinical Biomechanics Pub Date : 2025-07-18 DOI:10.1016/j.clinbiomech.2025.106624

Abu Jor , Toshiki Kobayashi , Chun Hei Lai , Mohammad Jobair Khan , Wing-Kai Lam , Fan Gao , Stanley J. Winser , Ming Zhang

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引用次数: 0

摘要

衰老过程涉及许多生理变化，可显著影响体位平衡和稳定性。本研究探讨了不同部位刺激足部矫形器突出旋钮的高度对老年人姿势平衡和稳定性的影响。方法对10例65岁及以上老年人进行交叉试验。参与者被随机分配到四种不同的足部矫形器条件下，具有不同的突出旋钮高度：没有旋钮的平足矫形器，具有短、中、高突出旋钮的刺激足矫形器。采用标准化的平衡和稳定性测试评估体位平衡和稳定性，包括压力中心轨迹、计算机动态体位测量和主观反馈。研究结果：目前的研究结果表明，使用高凸起的旋钮刺激足部矫形器可以减少睁眼站立时的前后和中外侧压力中心位移。此外，刺激足矫形器与高突出的旋钮增加压力中心的最大速度在斜坡上行走。在姿势学评估中，用高和中等高度的突出旋钮刺激足部矫形器可以提高平衡分数。虽然差异不具有统计学意义，但随着突出高度的增加，舒适度有下降的趋势。突出旋钮的高度似乎对增强老年人的姿势控制有正的剂量反应效应。然而，通过设计修改来解决相关的不适对于它们的实际应用至关重要。建议进行较大样本量的纵向研究，以确定部位特异性刺激的最佳给药策略。

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Effects of protruding knob heights in site-specific somatosensory foot orthoses on postural balance in older adults: A dose-response study

Background

The aging process involves many physiological changes that can significantly affect postural balance and stability. This study examines the effects of varying the height of protruding knobs in site-specific stimulating foot orthoses on postural balance and stability in older adults.

Methods

A crossover trial was conducted with 10 older adults aged 65 and above. Participants were randomly assigned to four different foot orthosis conditions with varying protruding knobs heights: flat foot orthosis without knobs, stimulating foot orthosis with short, medium-height, and tall protruding knobs. Postural balance and stability were assessed using standardized balance and stability tests, including center of pressure trajectory, computerized dynamic posturography, and subjective feedback.

Findings

The current findings revealed that stimulating foot orthosis with tall protruding knobs reduced both anteroposterior and mediolateral center of pressure displacements during standing with eyes open. Additionally, stimulating foot orthosis with tall protruding knobs increased center of pressure maximum velocity during walking on sloped surfaces. In posturography assessments, stimulating foot orthosis with tall and medium-height protruding knobs improved equilibrium scores. Although the differences were not statistically significant, a trend toward decreased comfort was observed with increasing protrusion height.

Interpretation

Height of protruding knobs appears to induce a positive dose-response effect on enhancing postural control in older adults. However, addressing the associated discomfort through design modification is crucial for their practical application. Longitudinal study with larger sample sizes is recommended to confirm optimal dosing strategies for site-specific stimulation.

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来源期刊

Clinical Biomechanics 医学-工程：生物医学

CiteScore

3.30

自引率

5.60%

发文量

189

审稿时长

12.3 weeks

期刊介绍： Clinical Biomechanics is an international multidisciplinary journal of biomechanics with a focus on medical and clinical applications of new knowledge in the field. The science of biomechanics helps explain the causes of cell, tissue, organ and body system disorders, and supports clinicians in the diagnosis, prognosis and evaluation of treatment methods and technologies. Clinical Biomechanics aims to strengthen the links between laboratory and clinic by publishing cutting-edge biomechanics research which helps to explain the causes of injury and disease, and which provides evidence contributing to improved clinical management. A rigorous peer review system is employed and every attempt is made to process and publish top-quality papers promptly. Clinical Biomechanics explores all facets of body system, organ, tissue and cell biomechanics, with an emphasis on medical and clinical applications of the basic science aspects. The role of basic science is therefore recognized in a medical or clinical context. The readership of the journal closely reflects its multi-disciplinary contents, being a balance of scientists, engineers and clinicians. The contents are in the form of research papers, brief reports, review papers and correspondence, whilst special interest issues and supplements are published from time to time. Disciplines covered include biomechanics and mechanobiology at all scales, bioengineering and use of tissue engineering and biomaterials for clinical applications, biophysics, as well as biomechanical aspects of medical robotics, ergonomics, physical and occupational therapeutics and rehabilitation.