Walking while talking: Effect of task prioritization in the elderly
Walking while talking: Effect of task prioritization in the elderly
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DOI：
10.1016/j.apmr.2006.10.007
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发表时间：
2007-01-01
影响因子：
4.3
通讯作者：
Pahor, Marco
中科院分区：
文献类型：
--
作者：
Verghese, Joe;Kuslansky, Gail;Pahor, Marco
目的：目的：探讨在同一个边走边说（WWT）任务中，两个指令对正常受试者任务优先级的影响。设计：横断面调查，受试者内比较。设置：社区样本。参与者：老年人（N=189;平均年龄，80.2 ± 4.9岁），不符合诊断和统计手册，第四版的标准，干预措施：不适用。主要结果测量：在相同的WWT任务中，使用2种不同的指令进行言语和步态测量：注意说话和行走（WWT-C）和只注意说话（WWT-T）。结果：任务优先级的影响被认为是步行，但不是说话。与基线正常步行速度（不说话）相比，受试者在WWT-T（中位数变化，28.3%）上比WWT-C（中位数变化，26.4%）慢得多。比较两种WWT条件，WWT-T与WWT-C相比，速度和节奏较慢，步幅较长。言语输出是没有显着不同的2 conditions.Conclusions：改变指令，同时保持相同的认知和运动任务上的WWT在老年人的结果，任务优先级的影响。
Objective: To examine the effect of 2 instructions on the same walking while talking (WWT) task on task prioritization by nondisabled subjects.Design: Cross-sectional survey with within subject comparisons.Setting: Community-based sample.Participants: Older adults (N=189; mean age, 80.2 +/- 4.9y), who did not meet criteria from the Diagnostic and Statistical Manual, Fourth Edition, for dementia and were able to independently perform activities of daily living.Interventions: Not applicable.Main Outcome Measures: Verbal and gait measures on the same WWT task with 2 different instructions: paying attention to both talking and walking (WWT-C) and paying attention only to talking (WWT-T).Results: Task prioritization effects were seen on walking but not on talking. Compared with their baseline normal walking velocity (without talking), subjects slowed down more on WWT-T (median change, 28.3%) than WWT-C (median change, 26.4%). Comparing the 2 WWT conditions, velocity and cadence was slower during WWT-T compared with WWT-C, with longer stride length. Verbal output was not significantly different on the 2 conditions.Conclusions: Changing instructions while maintaining the same cognitive and motor tasks on WWT in older adults result in task prioritization effects.