4.1 Article

Dual-Task Interference of Gait Parameters During Different Conditions of the Timed Up-and-Go Test Performed by Community-Dwelling Older Adults

Journal

JOURNAL OF AGING AND PHYSICAL ACTIVITY
Volume -, Issue -, Pages -

Publisher

HUMAN KINETICS PUBL INC
DOI: 10.1123/japa.2022-0304

Keywords

mobility; executive function; video

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This study investigated the effects of different TUGdt test conditions on gait among older adults. The results showed that different TUGdt conditions resulted in changes in gait parameters, with TUGdt-serial 7s causing the largest interference.
The Timed Up-and-Go (TUG) test has been combined with different verbal/cognitive tasks (i.e., TUG dual task [TUGdt]) as a form of motor-cognitive testing. However, it is still unclear how different TUGdt conditions affect gait among older adults. Thirty community-dwelling older adults, with mean age of 73 years, participated in the study. Data were collected using marker-free video recordings. Gait parameters were extracted using a semiautomatic deep learning system. Comparisons of execution time and gait parameter outcomes were made under TUG and three types of TUGdt test conditions: TUGdt-naming animals, TUGdtmonths backwards, and TUGdt-serial 7s. Statistical analyses were based on mean values of the gait parameters for each participant and TUG condition, including TUGdt gait cost, that is, the relative difference between TUGdt and TUG. All the investigated TUGdt conditions resulted in varying degrees of gait parameter changes. Under TUGdt conditions, participants took shorter and slower steps, with TUGdt-serial 7s causing the largest interference.

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