Departamento de Fisioterapia, Universidade Federal de São Carlos, São Carlos, SP, Brazil.
Braz J Phys Ther. 2015 Mar-Apr;19(2):159-66. doi: 10.1590/bjpt-rbf.2014.0082. Epub 2015 Apr 27.
The dual-task performance is associated with the functionality of the elderly and it becomes more complex with age.
To investigate the relationship between the Timed Up and Go dual task (TUG-DT) and cognitive tests among elderly participants who exercise regularly.
This study examined 98 non-institutionalized people over 60 years old who exercised regularly. Participants were assessed using the TUG-DT (i.e. doing the TUG while listing the days of the week in reverse order), the Montreal Cognitive Assessment (MoCA), the Clock Drawing Test (CDT), and the Mini Mental State Examination (MMSE). The motor (i.e. time and number of steps) and cognitive (i.e. number of correct words) data were collected from TUG-DT. We used a significance level of α=0.05 and SPSS 17.0 for all data analyses.
This current elderly sample featured a predominance of women (69.4%) who were highly educated (median=10 years of education) compared to Brazilian population and mostly non-fallers (86.7%). The volunteers showed a good performance on the TUG-DT and the other cognitive tests, except the MoCA, with scores below the cutoff of 26 points. Significant and weak correlations were observed between the TUG-DT (time) and the visuo-spatial/executive domain of the MoCA and the MMSE. The cognitive component of the TUG-DT showed strong correlations between the total MoCA performance score and its visuo-spatial/executive domain.
The use of the TUG-DT to assess cognition is promising; however, the use of more challenging cognitive tasks should be considered when the study population has a high level of education.
双重任务表现与老年人的功能有关，随着年龄的增长变得更加复杂。
调查经常锻炼的老年参与者的计时起立行走双重任务（TUG-DT）与认知测试之间的关系。
本研究检查了 98 名 60 岁以上非住院的经常锻炼的人。参与者使用 TUG-DT（即进行 TUG 的同时按逆序列出一周中的天数）、蒙特利尔认知评估（MoCA）、时钟绘制测试（CDT）和简易精神状态检查（MMSE）进行评估。从 TUG-DT 中收集运动（即时间和步数）和认知（即正确单词的数量）数据。我们使用显著性水平α=0.05 和 SPSS 17.0 进行所有数据分析。
与巴西人口相比，当前的老年样本以女性（69.4%）为主，受教育程度较高（中位数=10 年教育），且大多数人未跌倒（86.7%）。志愿者在 TUG-DT 和其他认知测试中表现良好，除了 MoCA，得分低于 26 分的截止值。TUG-DT（时间）与 MoCA 和 MMSE 的视空间/执行域之间存在显著的弱相关性。TUG-DT 的认知成分与 MoCA 的总表现评分及其视空间/执行域之间存在很强的相关性。
使用 TUG-DT 评估认知是有前途的；然而，当研究人群具有较高的教育水平时，应考虑使用更具挑战性的认知任务。
