Relationship between adaptability during turning and the complexity of walking before turning in older adults.

IF 1.1 4区心理学 Q4 NEUROSCIENCES Journal of Motor Behavior Pub Date : 2023-01-01 Epub Date: 2023-04-11 DOI:10.1080/00222895.2023.2199692

Takahito Nakamura, Kentaro Kodama, Juntaro Sakazaki, Takahiro Higuchi

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Abstract

In this study, the relationship between behavioral complexity (sample entropy, SEn) during steady walking and the quickness of subsequent turning performance in older adults. Herein, healthy older and younger adults (n = 12 each) were instructed to walk straight and then turn into an intersection surrounded by four pylons. This walking task was performed under two turning conditions: reactive and pre-planned turning, where the direction of turning was unknown until immediately before turning or was informed beforehand, respectively. For older adults, behavioral complexity was comparable under both conditions, but was higher under reactive than pre-planned turning condition for younger adults. This suggests that older adults cannot adapt their walking patterns in response to turning conditions. Correlation analysis showed that older adults with lower SEn had more difficulty in turning rapidly under reactive turning condition, indicating a relationship between the two variables. Thus, deterioration of the reactive turning performance in older adults is related to stereotyped movements during steady walking.

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老年人转弯时的适应能力与转弯前行走复杂性之间的关系。

本研究探讨了老年人在稳步行走过程中的行为复杂性（样本熵，SEn）与随后的转弯速度之间的关系。在这项研究中，健康的老年人和年轻人（人数各为 12 人）被要求直行，然后转弯进入由四个铁塔包围的十字路口。这项行走任务是在两种转弯条件下进行的：反应性转弯和预先计划的转弯，即分别在转弯前未知转弯方向或事先告知转弯方向。对于老年人来说，两种条件下的行为复杂性相当，但对于年轻人来说，反应性转向条件下的行为复杂性要高于计划前转向条件下的行为复杂性。这表明老年人无法根据转弯条件调整自己的行走模式。相关分析表明，SEn 较低的老年人在反应性转弯条件下更难快速转弯，这表明这两个变量之间存在关系。因此，老年人反应性转弯性能的下降与稳定行走时的刻板动作有关。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Motor Behavior 医学-神经科学

CiteScore

3.10

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： The Journal of Motor Behavior, a multidisciplinary journal of movement neuroscience, publishes articles that contribute to a basic understanding of motor control. Articles from different disciplinary perspectives and levels of analysis are encouraged, including neurophysiological, biomechanical, electrophysiological, psychological, mathematical and physical, and clinical approaches. Applied studies are acceptable only to the extent that they provide a significant contribution to a basic issue in motor control. Of special interest to the journal are those articles that attempt to bridge insights from different disciplinary perspectives to infer processes underlying motor control. Those approaches may embrace postural, locomotive, and manipulative aspects of motor functions, as well as coordination of speech articulators and eye movements. Articles dealing with analytical techniques and mathematical modeling are welcome.