经胫性肢体丧失影响老年人步行时的肌肉兴奋、三维动态平衡及其横断面相关性

IF 1.4 3区 医学 Q4 ENGINEERING, BIOMEDICAL
Arianna S. Monteiro , Matthew J. Major , Nicholas P. Fey
{"title":"经胫性肢体丧失影响老年人步行时的肌肉兴奋、三维动态平衡及其横断面相关性","authors":"Arianna S. Monteiro ,&nbsp;Matthew J. Major ,&nbsp;Nicholas P. Fey","doi":"10.1016/j.clinbiomech.2025.106535","DOIUrl":null,"url":null,"abstract":"<div><h3>Background</h3><div>Two-thirds of individuals with amputations in large cities are older. Our study identifies how lower-limb amputation alters dynamic balance, muscle excitation and their relationship across samples of older individuals at multiple walking speeds. We hypothesized that individuals with amputation would express different relationships between their muscle excitation and 3D dynamic balance, which would depend on speed.</div></div><div><h3>Methods</h3><div>Angular momenta of the body and individual segments, as well as bilateral electromyography signals of five muscles were compared between individuals with (<em>n</em> = 13) and without (<em>n</em> = 10) below-knee amputation at self-selected normal and fast speeds, using Statistical Parametric Mapping. We also related balance and muscle excitation through Pearson correlations of angular momenta and electromyography (α = 0.05).</div></div><div><h3>Findings</h3><div>There were multiple increases (and few decreases) in whole-body and segmental angular momenta for individuals with amputation during early, mid and late stance as well as terminal swing, especially in the sagittal plane. Excitation of the medial hamstring of the residual leg in late swing was decreased at both speeds in individuals with amputations. Generally, both groups had positive correlations between muscle excitation and angular momenta. However, interesting exceptions occurred for the group with amputation such as a negative relationship between the medial hamstring of the residual limb and whole-body angular momentum in the transverse plane at normal walking speeds, where increased muscle activity was associated with more balanced individuals.</div></div><div><h3>Interpretation</h3><div>Use of prostheses during walking by older individuals influences dynamic balance, muscle coordination, and their correlation. Observability of these differences depends on speed and anatomical plane.</div></div>","PeriodicalId":50992,"journal":{"name":"Clinical Biomechanics","volume":"125 ","pages":"Article 106535"},"PeriodicalIF":1.4000,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Transtibial limb loss influences muscle excitation, 3D dynamic balance and their cross-sectional correlation in older individuals during walking\",\"authors\":\"Arianna S. Monteiro ,&nbsp;Matthew J. Major ,&nbsp;Nicholas P. Fey\",\"doi\":\"10.1016/j.clinbiomech.2025.106535\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><h3>Background</h3><div>Two-thirds of individuals with amputations in large cities are older. Our study identifies how lower-limb amputation alters dynamic balance, muscle excitation and their relationship across samples of older individuals at multiple walking speeds. We hypothesized that individuals with amputation would express different relationships between their muscle excitation and 3D dynamic balance, which would depend on speed.</div></div><div><h3>Methods</h3><div>Angular momenta of the body and individual segments, as well as bilateral electromyography signals of five muscles were compared between individuals with (<em>n</em> = 13) and without (<em>n</em> = 10) below-knee amputation at self-selected normal and fast speeds, using Statistical Parametric Mapping. We also related balance and muscle excitation through Pearson correlations of angular momenta and electromyography (α = 0.05).</div></div><div><h3>Findings</h3><div>There were multiple increases (and few decreases) in whole-body and segmental angular momenta for individuals with amputation during early, mid and late stance as well as terminal swing, especially in the sagittal plane. Excitation of the medial hamstring of the residual leg in late swing was decreased at both speeds in individuals with amputations. Generally, both groups had positive correlations between muscle excitation and angular momenta. However, interesting exceptions occurred for the group with amputation such as a negative relationship between the medial hamstring of the residual limb and whole-body angular momentum in the transverse plane at normal walking speeds, where increased muscle activity was associated with more balanced individuals.</div></div><div><h3>Interpretation</h3><div>Use of prostheses during walking by older individuals influences dynamic balance, muscle coordination, and their correlation. Observability of these differences depends on speed and anatomical plane.</div></div>\",\"PeriodicalId\":50992,\"journal\":{\"name\":\"Clinical Biomechanics\",\"volume\":\"125 \",\"pages\":\"Article 106535\"},\"PeriodicalIF\":1.4000,\"publicationDate\":\"2025-04-25\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Clinical Biomechanics\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0268003325001081\",\"RegionNum\":3,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"ENGINEERING, BIOMEDICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Clinical Biomechanics","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0268003325001081","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, BIOMEDICAL","Score":null,"Total":0}
引用次数: 0

摘要

大城市中三分之二的截肢患者年龄较大。我们的研究确定了下肢截肢如何改变动态平衡、肌肉兴奋以及它们在不同步行速度下的老年人样本之间的关系。我们假设截肢者的肌肉兴奋与三维动态平衡之间的关系会因速度的不同而不同。方法采用统计参数映射(Statistical Parametric Mapping)方法,比较自行选择的正常和快速速度下(n = 10)膝下截肢者(n = 13)和未截肢者(n = 10)的身体和单个节段角动量,以及双侧5块肌肉的肌电信号。我们还通过角动量和肌电图的Pearson相关性将平衡和肌肉兴奋联系起来(α = 0.05)。结果截肢者在站立的早、中、晚期以及末端摆动时,全身和节段角动量均有多幅增加(少幅减少),尤其是在矢状面。在截肢患者中,在两种速度下,后期摆动中残余腿内侧腘绳肌的兴奋都减少了。总的来说,两组肌肉兴奋与角动量呈正相关。然而,在截肢组中出现了有趣的例外,例如在正常步行速度下,残肢内侧腿筋与横切面的全身角动量呈负相关,其中肌肉活动增加与更平衡的个体相关。老年人在行走过程中使用假肢会影响动态平衡、肌肉协调及其相关性。这些差异的可观察性取决于速度和解剖平面。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Transtibial limb loss influences muscle excitation, 3D dynamic balance and their cross-sectional correlation in older individuals during walking

Background

Two-thirds of individuals with amputations in large cities are older. Our study identifies how lower-limb amputation alters dynamic balance, muscle excitation and their relationship across samples of older individuals at multiple walking speeds. We hypothesized that individuals with amputation would express different relationships between their muscle excitation and 3D dynamic balance, which would depend on speed.

Methods

Angular momenta of the body and individual segments, as well as bilateral electromyography signals of five muscles were compared between individuals with (n = 13) and without (n = 10) below-knee amputation at self-selected normal and fast speeds, using Statistical Parametric Mapping. We also related balance and muscle excitation through Pearson correlations of angular momenta and electromyography (α = 0.05).

Findings

There were multiple increases (and few decreases) in whole-body and segmental angular momenta for individuals with amputation during early, mid and late stance as well as terminal swing, especially in the sagittal plane. Excitation of the medial hamstring of the residual leg in late swing was decreased at both speeds in individuals with amputations. Generally, both groups had positive correlations between muscle excitation and angular momenta. However, interesting exceptions occurred for the group with amputation such as a negative relationship between the medial hamstring of the residual limb and whole-body angular momentum in the transverse plane at normal walking speeds, where increased muscle activity was associated with more balanced individuals.

Interpretation

Use of prostheses during walking by older individuals influences dynamic balance, muscle coordination, and their correlation. Observability of these differences depends on speed and anatomical plane.
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
Clinical Biomechanics
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.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信