Fast walking under cognitive-motor interference conditions in chronic stroke

被引:50
作者
Dennis, Andrea [1 ]
Dawes, Helen [1 ]
Elsworth, Charlotte [1 ]
Collett, Johnny [1 ]
Howells, Ken [1 ]
Wade, Derick T. [2 ]
Izadi, Hooshang [3 ]
Cockburn, Janet [1 ]
机构
[1] Oxford Brookes Univ, Sch Life Sci, Movement Sci Grp, Headington OX3 0BP, England
[2] Oxford Ctr Enablement, Rivermead Res Grp, Oxford, England
[3] Oxford Brookes Univ, Dept Math Sci, Oxford OX3 0BP, England
基金
英国经济与社会研究理事会;
关键词
Gait; Stroke; Cognitive-motor interference; Disability; DUAL-TASK; NEUROPSYCHOLOGICAL STATUS; REPEATABLE BATTERY; ALZHEIMERS-DISEASE; EXECUTIVE FUNCTION; GAIT VELOCITY; PERFORMANCE; COMMUNITY; ATTENTION; POPULATION;
D O I
10.1016/j.brainres.2009.06.023
中图分类号
Q189 [神经科学];
学科分类号
071006 [神经生物学];
摘要
Gait in stroke patients is often characterised by slower speeds, which may be exacerbated by situations that combine gait with a cognitive task, leading to difficulties with everyday activities. Interaction between cognitive task performance and gait speed may differ according to walking intensity. This study examines the effects of two cognitive tasks on gait at preferred walking pace, and at a faster pace, using dual-task methodology. 21 chronic stroke patients and 10 age-matched control subjects performed 2 single motor tasks (walking at preferred and at fast pace around a walkway), and two cognitive tasks (serial subtractions of 3s and a visual-spatial decision task) under single- and dual-task conditions (cognitive-motor interference) in a randomised order. Cognitive task score and gait speed were measured. The healthy control group showed no effects of CMI. The stroke group decreased their walking speed whilst concurrently performing serial 3s during both preferred and fast walking trials and made more mistakes in the visuo-spatial task during fast walking. There was no effect of walking on the serial 3 performance. The findings show that in stroke patients, during walking whilst concurrently counting backwards in 3s the cognitive task appeared to take priority over maintenance of walking speed. During fast walking whilst concurrently performing a visuo-spatial imagery task, they appeared to favour walking. This may indicate that people spontaneously favour one activity over the other, which has implications for gait rehabilitation. (C) 2009 Published by Elsevier B.V.
引用
收藏
页码:104 / 110
页数:7
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