Conventional video-based system for measuring the subtask speed of the Timed Up and Go Test in older adults: Validity and reliability study

Teerawat Kamnardsiri; Nuanlaor Thawinchai; Arisa Parameyong; Pim Pholjaroen; Khanittha Wonglangka; Paphawee Prupetkaew; Sirinun Boripuntakul

doi:10.1371/journal.pone.0286574

Conventional video-based system for measuring the subtask speed of the Timed Up and Go Test in older adults: Validity and reliability study

PLoS One. 2023 Jun 2;18(6):e0286574. doi: 10.1371/journal.pone.0286574. eCollection 2023.

Authors

Teerawat Kamnardsiri^{1

2}, Nuanlaor Thawinchai³, Arisa Parameyong³, Pim Pholjaroen³, Khanittha Wonglangka³, Paphawee Prupetkaew³, Sirinun Boripuntakul^{2

3}

Affiliations

¹ Department of Digital Game, College of Arts, Media and Technology, Chiang Mai University, Chiang Mai, Thailand.
² Research Group in Informatics for Well-being Society, Chiang Mai University, Chiang Mai, Thailand.
³ Faculty of Associated Medical Sciences, Department of Physical Therapy, Chiang Mai University, Chiang Mai, Thailand.

Abstract

The Timed Up and Go Test (TUG) is a simple fall risk screening test that covers basic functional movement; thus, quantifying the subtask movement ability may provide a clinical utility. The video-based system allows individual's movement characteristics assessment. This study aimed to investigate the concurrent validity and test-retest reliability of the video-based system for assessing the movement speed of TUG subtasks among older adults. Twenty older adults participated in the validity study, whilst ten older adults participated in the reliability study. Participant's movement speed in each subtask of the TUG under comfortable and fast speed conditions over two sessions was measured. Pearson correlation coefficient was used to identify the validity of the video-based system compared to the motion analysis system. Intraclass correlation coefficient (ICC3,2) was used to determine the reliability of the video-based system. The Bland-Altman plots were used to quantify the agreement between the two measurement systems and two repeatable sessions. The validity analysis demonstrated a moderate to very high relationship in all TUG subtask movement speeds between the two systems under the comfortable speed (r = 0.672-0.906, p < 0.05) and a moderate to high relationship under the fast speed (r = 0.681-0.876, p < 0.05). The reliability of the video-based system was good to excellent for all subtask movement speeds in both the comfortable speed (ICCs = 0.851-0.967, p < 0.05) and fast speed (ICCs = 0.720-0.979, p < 0.05). The Bland-Altman analyses showed that almost all mean differences of the subtask speed of the TUG were close to zero, within 95% limits of agreement, and symmetrical distribution of scatter plots. The video-based system was a valid and reliable tool that may be useful in measuring the subtask movement speed of TUG among healthy older adults.

Copyright: © 2023 Kamnardsiri et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Aged
Humans
Movement
Postural Balance*
Reproducibility of Results
Time and Motion Studies
Walking*

Grants and funding

-Teerawat Kamnardsiri -College of Arts, Media and Technology, Chiang Mai University, Thailand and Research Group of Modern Management and Information Technology, College of Arts, Media and Technology, Chiang Mai University, Thailand. -The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.