Department of Physical Therapy, MGH Institute of Health Professions, Boston, MA, USA.
Department of Physical Therapy, High Point University, One University Parkway, High Point, NC, USA.
Physiother Theory Pract. 2022 Oct;38(10):1329-1344. doi: 10.1080/09593985.2021.1872129. Epub 2021 Jan 18.
Dual-task gait training may improve dual-task gait speed after stroke, but the effects on the relative amount of dual-task interference are unclear.
To compare the efficacy of dual-task gait training (DTGT) and single-task gait training (STGT) on cognitive-motor dual-task interference after stroke.
36 adults within 3 years of stroke were randomized 1:1 to STGT or DTGT, 3 times a week for 4 weeks. The primary outcomes were the relative dual-task effect on gait speed (DTEg, %) and cognitive task performance (DTEc, %) during walking at preferred and fast speed in two different dual-task conditions (auditory Stroop, auditory clock task).
There were no treatment effects on DTEg or DTEc in either group for either dual-task at either walking speed. Across all participants, there were significant improvements in both single and dual-task gait speed in all conditions, without any relative change in the dual-task effect. Subgroup analysis suggested that those with greater interference at baseline may benefit more from DTGT.
DTGT and STGT improved single and dual-task gait speed but did not change the amount of relative interference. The findings may be confounded by an unexpectedly small amount of gait-related dual-task interference at baseline.
双重任务步态训练可能会改善脑卒中后双重任务步态速度，但对双重任务干扰的相对量的影响尚不清楚。
比较双重任务步态训练（DTGT）和单任务步态训练（STGT）对脑卒中后认知-运动双重任务干扰的疗效。
36 名脑卒中后 3 年内的成年人按 1:1 随机分为 STGT 或 DTGT 组，每周 3 次，共 4 周。主要结局指标为在两种不同双重任务条件下（听觉 Stroop、听觉时钟任务）行走时步态速度（DTEg，%）和认知任务表现（DTEc，%）的相对双重任务效应。
在任何步行速度下，任何双重任务条件下，两组的 DTEg 或 DTEc 均无治疗效果。在所有参与者中，所有条件下的单任务和双重任务步态速度都有显著提高，而双重任务效应没有相对变化。亚组分析表明，那些基线时干扰较大的患者可能从 DTGT 中获益更多。
DTGT 和 STGT 提高了单任务和双重任务步态速度，但没有改变相对干扰量。研究结果可能因基线时步态相关双重任务干扰的数量出人意料地小而受到影响。
