Hui-Ya Chen1, Pei-Fang Tang2. 1. H-Y. Chen, PT, PhD, School of Physical Therapy, Chung Shan Medical University, Taichung, Taiwan, and Physical Therapy Room, Chung Shan Medical University Hospital, Taichung, Taiwan. 2. P-F. Tang, PT, PhD, School and Graduate Institute of Physical Therapy, College of Medicine, National Taiwan University, Room 325, Floor 3, No. 17, XuZhou Road, ZhongZheng District, Taipei, Taiwan; Graduate Institute of Brain and Mind Sciences, College of Medicine, National Taiwan University, Taipei, Taiwan; Neurobiology and Cognitive Science Center, National Taiwan University Hospital; and Physical Therapy Center, National Taiwan University Hospital. pftang@ntu.edu.tw.
Abstract
BACKGROUND: Dual-task Timed "Up & Go" (TUG) tests are likely to have applications different from those of a single-task TUG test and may have different contributing factors. OBJECTIVE: The purpose of this study was to compare factors contributing to performance on single- and dual-task TUG tests. DESIGN: This investigation was a cross-sectional study. METHODS: Sixty-four adults who were more than 50 years of age and dwelled in the community were recruited. Interviews and physical examinations were performed to identify potential contributors to TUG test performance. The time to complete the single-task TUG test (TUGsingle) or the dual-task TUG test, which consisted of completing the TUG test while performing a serial subtraction task (TUGcognitive) or while carrying water (TUGmanual), was measured. RESULTS: Age, hip extensor strength, walking speed, general mental function, and Stroop scores for word and color were significantly associated with performance on all TUG tests. Hierarchical multiple regression models, without the input of walking speed, revealed different independent factors contributing to TUGsingle performance (Mini-Mental Status Examination score, β=-0.32), TUGmanual performance (age, β=0.35), and TUGcognitive performance (Stroop word score, β=-0.40; Mini-Mental Status Examination score, β=-0.31). LIMITATIONS: At least 40% of the variance in the performance on the 3 TUG tests was not explained by common clinical measures, even when the factor of walking speed was considered. However, this study successfully identified some important factors contributing to performance on different TUG tests, and other studies have reported similar findings for single-task TUG test and dual-task gait performance. CONCLUSIONS: Although the TUGsingle and the TUGcognitive shared general mental function as a common factor, the TUGmanual was uniquely influenced by age and the TUGcognitive was uniquely influenced by focused attention. These results suggest that both common and unique factors contribute to performance on single- and dual-task TUG tests and suggest important applications of the combined use of the 3 TUG tests.
BACKGROUND: Dual-task Timed "Up & Go" (TUG) tests are likely to have applications different from those of a single-task TUG test and may have different contributing factors. OBJECTIVE: The purpose of this study was to compare factors contributing to performance on single- and dual-task TUG tests. DESIGN: This investigation was a cross-sectional study. METHODS: Sixty-four adults who were more than 50 years of age and dwelled in the community were recruited. Interviews and physical examinations were performed to identify potential contributors to TUG test performance. The time to complete the single-task TUG test (TUGsingle) or the dual-task TUG test, which consisted of completing the TUG test while performing a serial subtraction task (TUGcognitive) or while carrying water (TUGmanual), was measured. RESULTS: Age, hip extensor strength, walking speed, general mental function, and Stroop scores for word and color were significantly associated with performance on all TUG tests. Hierarchical multiple regression models, without the input of walking speed, revealed different independent factors contributing to TUGsingle performance (Mini-Mental Status Examination score, β=-0.32), TUGmanual performance (age, β=0.35), and TUGcognitive performance (Stroop word score, β=-0.40; Mini-Mental Status Examination score, β=-0.31). LIMITATIONS: At least 40% of the variance in the performance on the 3 TUG tests was not explained by common clinical measures, even when the factor of walking speed was considered. However, this study successfully identified some important factors contributing to performance on different TUG tests, and other studies have reported similar findings for single-task TUG test and dual-task gait performance. CONCLUSIONS: Although the TUGsingle and the TUGcognitive shared general mental function as a common factor, the TUGmanual was uniquely influenced by age and the TUGcognitive was uniquely influenced by focused attention. These results suggest that both common and unique factors contribute to performance on single- and dual-task TUG tests and suggest important applications of the combined use of the 3 TUG tests.
Authors: Jordyn Rice; Daniel T Corp; Alessandra Swarowsky; Lawrence P Cahalin; Danylo F Cabral; Christina Nunez; Sebastian Koch; Tatjana Rundek; Joyce Gomes-Osman Journal: J Neurol Phys Ther Date: 2022-01-01 Impact factor: 3.649
Authors: Karen Van Ooteghem; Kristin E Musselman; Avril Mansfield; David Gold; Meghan N Marcil; Ron Keren; Maria Carmela Tartaglia; Alastair J Flint; Andrea Iaboni Journal: Alzheimers Dement (N Y) Date: 2019-08-31