Dynamic Posturography: Perturbed equilibrium assessment on healthy adult subjects

Lucia Grassi, S. Rossi, P. Cappa
{"title":"Dynamic Posturography: Perturbed equilibrium assessment on healthy adult subjects","authors":"Lucia Grassi, S. Rossi, P. Cappa","doi":"10.1109/MeMeA.2015.7145173","DOIUrl":null,"url":null,"abstract":"Posturography is a fundamental tool to investigate the systems involved in the postural control either in static and in dynamic conditions. In the present paper we decided, by using sinusoidal perturbations of base support around the anteroposterior axis, to analyze the equilibrium parameters widely used in posture control studies - i.e. Compensatory Postural Adjustments (CPAs) and Anticipatory Postural Adjustments (APAs) - in the perspective of defining a range of equilibrium parameters for healthy adult subjects. Fourteen subjects (9 males and 5 females) with no experience of the experimental procedure participated to the experiments. Sine and step movements of the moving base were imposed through a 3-DOF (Degrees Of Freedom) robotic system and both standard and here proposed novel indices were calculated for the evaluation of equilibrium performance. The results suggest that the length of the Center Of Pressure (COP) trajectory is proportional to the frequency of the oscillations of the platform in the sine perturbation trials, while the range of motion of COP is not influenced. Moreover, we found the absence of asymmetries in the healthy subjects when they performed the session with step perturbations.","PeriodicalId":277757,"journal":{"name":"2015 IEEE International Symposium on Medical Measurements and Applications (MeMeA) Proceedings","volume":"19 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2015-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2015 IEEE International Symposium on Medical Measurements and Applications (MeMeA) Proceedings","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/MeMeA.2015.7145173","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2

Abstract

Posturography is a fundamental tool to investigate the systems involved in the postural control either in static and in dynamic conditions. In the present paper we decided, by using sinusoidal perturbations of base support around the anteroposterior axis, to analyze the equilibrium parameters widely used in posture control studies - i.e. Compensatory Postural Adjustments (CPAs) and Anticipatory Postural Adjustments (APAs) - in the perspective of defining a range of equilibrium parameters for healthy adult subjects. Fourteen subjects (9 males and 5 females) with no experience of the experimental procedure participated to the experiments. Sine and step movements of the moving base were imposed through a 3-DOF (Degrees Of Freedom) robotic system and both standard and here proposed novel indices were calculated for the evaluation of equilibrium performance. The results suggest that the length of the Center Of Pressure (COP) trajectory is proportional to the frequency of the oscillations of the platform in the sine perturbation trials, while the range of motion of COP is not influenced. Moreover, we found the absence of asymmetries in the healthy subjects when they performed the session with step perturbations.
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
动态体位术:健康成人受试者的摄动平衡评估
姿势学是研究静态和动态条件下姿势控制系统的基本工具。在本文中,我们决定通过前后轴周围基底支撑的正弦扰动,分析姿势控制研究中广泛使用的平衡参数-即代偿性姿势调整(CPAs)和预期性姿势调整(APAs) -从定义健康成人受试者的平衡参数范围的角度出发。14名没有实验经验的受试者(男9名,女5名)参加了实验。运动基座的正弦和阶跃运动通过三自由度机器人系统施加,并计算标准指标和本文提出的新指标来评估平衡性能。结果表明,在正弦摄动试验中,压力中心(COP)轨迹长度与平台振动频率成正比,而COP的运动范围不受影响。此外,我们发现健康受试者在进行阶梯扰动时不存在不对称。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
自引率
0.00%
发文量
0
期刊最新文献
Needle detection by electro-localization for a needle EMG exam robotic simulator Evaluation of control modes for head motion-based control with motion sensors A novel automatically initialized level set approach based on region correlation for lumbar vertebrae CT image segmentation Smart environments using near-field communication and HTML5 New FEM 3D model for arm-cuff interface simulation
×
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
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 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 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1