Wollesen Bettina, Voelcker-Rehage Claudia, Willer Jasmin, Zech Astrid, Mattes Klaus
Department of Human Movement Science, University Hamburg, Mollerstr.2, 20148, Hamburg, Germany,
Aging Clin Exp Res. 2015 Aug;27(4):447-55. doi: 10.1007/s40520-014-0301-4. Epub 2015 Jan 3.
Dual task (DT) training is becoming prominent in fall prevention. However, DT training should include task-managing strategies like task switching or task prioritization to be beneficial to improve gait performance under DT conditions. The aim of this pilot study was to evaluate the effect of a task managing training on gait stability.
A DT training (12 sessions; 60 min each; 12 weeks) was compared to a non-training control group within a RCT (38 independent living participants; 72.7 ± 4.7 years). Single Task (ST) and DT walking (visual verbal Stroop task) were measured on a treadmill (FDM-T, 3.5 km/h, 100 HZ). Gait parameters like step length, step width, gait line, maximum forces and gait variability were compared.
The training group improved their gait performance under ST and DT conditions as revealed by significant group × time interaction effects.
The training successfully improved gait performance and therefore might be a promising approach to prevent falls. Additional fall prevention studies should focus on motor-cognitive performance and reinforce outcomes of task managing strategies.
双重任务(DT)训练在预防跌倒方面正变得日益重要。然而,DT训练应包括任务切换或任务优先级等任务管理策略,才有助于在DT条件下改善步态表现。这项初步研究的目的是评估任务管理训练对步态稳定性的影响。
在一项随机对照试验(RCT)中,将DT训练(12节课程;每节60分钟;共12周)与非训练对照组进行比较(38名独立生活的参与者;年龄72.7±4.7岁)。在跑步机(FDM-T,速度3.5公里/小时,100赫兹)上测量单任务(ST)和DT行走(视觉言语斯特鲁普任务)。比较步长、步宽、步态线、最大力和步态变异性等步态参数。
训练组在ST和DT条件下的步态表现有所改善,显著的组×时间交互效应表明了这一点。
该训练成功改善了步态表现,因此可能是一种有前景的预防跌倒方法。更多的预防跌倒研究应关注运动认知表现,并强化任务管理策略的效果。