Manicolo Olivia, Grob Alexander, Hagmann-von Arx Priska
Department of Psychology, University of Basel Basel, Switzerland.
Front Psychol. 2017 Jan 19;8:34. doi: 10.3389/fpsyg.2017.00034. eCollection 2017.
The aim was to examine gait in school-aged children with attention-deficit hyperactivity disorder (ADHD) and typically developing controls in a dual-task paradigm. Thirty children with ADHD (without or off medication) aged 7-13 years and 28 controls walked without an additional task (single-task walking) and while performing a concurrent cognitive or motor task (dual-task walking). Gait was assessed using GAITRite recordings of spatiotemporal and variability gait parameters. Compared to single-task walking, dual-tasking significantly altered walking performance of children with and without ADHD, whereby dual-task effects on gait were not different between the two groups. For both children with ADHD and controls the motor concurrent task had a stronger effect on gait than the cognitive concurrent task. Gait in children with and without ADHD is affected in a dual-task paradigm indicating that walking requires executive functions. Future investigations of children's dual-task walking should account for the type of concurrent tasks.
目的是在双重任务范式下，研究患有注意力缺陷多动障碍（ADHD）的学龄儿童以及发育正常的对照组儿童的步态。30名7至13岁患有ADHD（未服药或已停药）的儿童和28名对照组儿童在无额外任务（单任务步行）以及执行一项同时进行的认知或运动任务（双任务步行）时行走。使用GAITRite记录时空和变异性步态参数来评估步态。与单任务步行相比，双重任务显著改变了患有和未患有ADHD儿童的行走表现，两组之间双重任务对步态的影响并无差异。对于患有ADHD的儿童和对照组儿童而言，运动同时进行任务对步态的影响比对认知同时进行任务的影响更大。患有和未患有ADHD儿童的步态在双重任务范式下均受到影响，这表明行走需要执行功能。未来对儿童双任务步行的研究应考虑同时进行任务的类型。
