Effect of a visual dual task on postural stability—A comparative study using linear and nonlinear methods

Author:

Ghamari Narges1ORCID,Ghaderpanah Rezvan2ORCID,Sadrian Seyed Hassan2,Fallah Nahid3

Affiliation:

1. Bone and Joint Diseases Research Center Shiraz University of Medical Sciences Shiraz Iran

2. Department of Physical Medicine and Rehabilitation, Students Research Committee, School of Medicine Shiraz University of Medical Sciences Shiraz Iran

3. Department of Health, Sports Physiotherapy Research Committee University of Bath, Claverton Down Bath UK

Abstract

AbstractBackground and AimsThe dual‐task experimental paradigm is used to study the attentional demands of postural control. Postural control is impaired in poststroke patients, and dual‐task balance studies address the visual needs of postural control in stroke patients. A nonlinear approach can help us understand the overall behavior of the dynamic system.MethodsA total of 20 chronic stroke patients and 20 healthy subjects with similar age, height, and weight participated in this study. The stability and complexity of postural control were assessed using linear and nonlinear methods. All data and parameters (center of pressure [COP] velocity, anteroposterior and mediolateral directions displacement, length of COP path, and phase plane) were analyzed using the Kolmogorov–Smirnov test.ResultsWhen postural control was examined based on linear analysis, the results showed that the main effect of the group was not significant, but the main impact of position was significant for all parameters of the COP variation (p < 0.05). Examination of postural control based on nonlinear analysis also showed that the main effect of the group was not significant, and the main effect of status was significant only for the parameters of approximate entropy in both directions and short‐term Lyapunov view in the anterior‐posterior direction (p < 0.05).ConclusionAccording to the results of this study, the assessment of postural control and gait performance in poststroke patients, as well as the dual tasks they have to perform in daily life, is crucial for their independence in activities of daily living.

Publisher

Wiley

Subject

General Medicine

Cited by 2 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3