Tamura Kaori, Kocher Morgan, Finer Liana, Murata Nathan, Stickley Christopher
University of Hawaii at Manoa Department of Kinesiology and Rehabilitation Science, 1337 Lower Campus Rd, PE/A 231, Honolulu, HI, 96822, United States.
Gait Posture. 2018 Feb;60:22-27. doi: 10.1016/j.gaitpost.2017.11.002. Epub 2017 Nov 6.
Dual-Task testing has been reported to have a higher sensitivity to deficits associated with concussion; however, the feasibility as a clinical or field test is questionable due to the requirements of laboratory-based equipment. With an overarching goal of exploration of clinically feasible Dual-Task testing options, the specific aims of this study were 1) to evaluate the reliability of Dual-Task testing methods using the Expanded Timed Get-Up-and-Go (ETGUG) paired with Backward Digit Recall (BDR), Serial Seven (SS), and Auditory Pure Switch Task (APST), and 2) to determine the effects of Dual-Task testing on motor and cognitive performance in healthy college-aged individuals. Fifty-four healthy young adults completed two separate testing sessions, which consisted of Single-Task tests in a randomized order followed by 3 pairs of Dual-Task tests in a randomized order. Test-retest reliability for ETGUG time to completion was excellent for all Single- and Dual-Task conditions (ICC 0.89-0.92); however, ETGUG and ETGUG were associated with learning effects (p=0.002 and 0.007, respectively). Test-retest reliability for Response Rate of the cognitive tasks was lower than those of motor task and all outcomes were associated with learning effects. The completion time of the ETGUG pair indicated excellent reliability with no learning effect. Performance level declined in all tasks under Dual-Task conditions compared to Single-Task; however, motor tasks showed larger deficits indicating the prioritization of the cognitive task compared to the motor task.
据报道，双重任务测试对与脑震荡相关的缺陷具有更高的敏感性；然而，由于需要基于实验室的设备，其作为临床或现场测试的可行性值得怀疑。本研究的总体目标是探索临床可行的双重任务测试选项，其具体目标为：1）使用扩展计时起立行走测试（ETGUG）与倒序数字回忆测试（BDR）、连续减7测试（SS）和听觉纯切换任务测试（APST）来评估双重任务测试方法的可靠性；2）确定双重任务测试对健康的大学生个体运动和认知表现的影响。54名健康的年轻成年人完成了两个单独的测试环节，包括以随机顺序进行的单任务测试，然后是以随机顺序进行的3对双重任务测试。在所有单任务和双重任务条件下，ETGUG完成时间的重测信度都非常好（组内相关系数ICC为0.89 - 0.92）；然而，ETGUG和ETGUG与学习效应相关（分别为p = 0.002和0.007）。认知任务反应率的重测信度低于运动任务，并且所有结果都与学习效应相关。ETGUG配对的完成时间显示出极好的信度且无学习效应。与单任务相比，在双重任务条件下所有任务的表现水平都有所下降；然而，运动任务显示出更大的缺陷，表明与运动任务相比，认知任务被优先处理。
