Age-related effects of immediate and delayed task switching in a targeted stepping task.

IF 2.1 3区心理学 Q2 PSYCHOLOGY

Journal of Experimental Psychology-Human Perception and Performance Pub Date : 2024-10-01 Epub Date: 2024-08-22 DOI:10.1037/xhp0001237

Kyungwan Kim, Lena Deller, Marie Vinent, Wiebren Zijlstra

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引用次数: 0

Abstract

The ability to quickly adapt steps while walking is pivotal for safe mobility. In a previous study of immediate switching between the two stepping tasks, older adults (OAs) performed worse than young adults (YAs). However, it remained unclear whether this difference was due to an inability to learn the tasks or an inability to quickly switch. Therefore, this study investigated treadmill walking while performing two targeted stepping tasks in conditions with immediate task switching (ITS) versus delayed task switching (DTS). Thirty YAs (aged 26.9 ± 3.1 years) and 32 OAs (aged 70.7 ± 7.3 years) were randomly assigned to either the ITS (ITS_YAs and ITS_OAs) or the DTS (DTS_YAs and DTS_OAs) group. Each group repeatedly switched between Task A (easy) and Task B (difficult) and completed three blocks (ABAB). Delayed switching involved 1-min breaks between both tasks. Results showed that ITS_OAs exhibited significantly more step errors and worse step accuracy, but that DTS_OAs were able to achieve a similar performance as YAs. Our findings underline an inability for quick gait adaptation during targeted stepping tasks in OAs, but the possibility to learn when delayed switching reduces task interference. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

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目标步法任务中即时和延迟任务切换对年龄的影响

行走时快速调整步法的能力对于安全移动至关重要。在之前的一项关于在两种迈步任务之间立即切换的研究中，老年人（OAs）的表现比年轻人（YAs）差。然而，这种差异究竟是由于无法学习任务还是无法快速切换造成的，目前仍不清楚。因此，本研究调查了在立即任务切换（ITS）和延迟任务切换（DTS）条件下进行两项目标步法任务时的跑步机行走情况。研究人员将 30 名 YAs（年龄为 26.9 ± 3.1 岁）和 32 名 OAs（年龄为 70.7 ± 7.3 岁）随机分配到 ITS 组（ITS_YAs 和 ITS_OAs）或 DTS 组（DTS_YAs 和 DTS_OAs）。每组在任务 A（简单）和任务 B（困难）之间反复切换，并完成三个组块（ABAB）。延迟切换包括在两个任务之间休息 1 分钟。结果显示，ITS_OAs 表现出明显更多的步法错误和更差的步法准确性，但 DTS_OAs 能够达到与 YAs 相似的成绩。我们的研究结果表明，OA在执行有针对性的步法任务时无法快速适应步态，但在延迟切换减少任务干扰时有可能学会步法。(PsycInfo Database Record (c) 2024 APA, 版权所有）。

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 Experimental Psychology-Human Perception and Performance 医学-心理学

CiteScore

3.50

自引率

9.50%

发文量

145

审稿时长

4-8 weeks

期刊介绍： The Journal of Experimental Psychology: Human Perception and Performance publishes studies on perception, control of action, perceptual aspects of language processing, and related cognitive processes.