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@article{1677626,
author = {Kasović, Mario and Stefan, Lovro and Zvonař, Martin},
article_location = {Basel (Switzerland)},
article_number = {2},
doi = {http://dx.doi.org/10.3390/ijerph17020593},
keywords = {screen-time; walking speed; performance; aged},
language = {eng},
issn = {1660-4601},
journal = {International Journal of Environmental Research and Public Health},
title = {Domain-Specific and Total Sedentary Behavior Associated with Gait Velocity in Older Adults: The Mediating Role of Physical Fitness},
url = {http://doi.org/10.3390/ijerph17020593},
volume = {17},
year = {2020}
}
TY - JOUR
ID - 1677626
AU - Kasović, Mario - Stefan, Lovro - Zvonař, Martin
PY - 2020
TI - Domain-Specific and Total Sedentary Behavior Associated with Gait Velocity in Older Adults: The Mediating Role of Physical Fitness
JF - International Journal of Environmental Research and Public Health
VL - 17
IS - 2
SP - 1-9
EP - 1-9
PB - MDPI AG
SN - 16604601
KW - screen-time
KW - walking speed
KW - performance
KW - aged
UR - http://doi.org/10.3390/ijerph17020593
L2 - http://doi.org/10.3390/ijerph17020593
N2 - Although it has been well-documented that older adults spend a significant amount of time being sedentary and have slower gait velocity, little is known of how physical fitness mediates the association between them. The main purpose of this study was to explore whether objectively measured physical fitness mediates the association between domain-specific and total sedentary behavior and gait velocity. We recruited 120 older adults aged >= 60 years. Sedentary behavior was assessed by the Measure of Older Adults' Sedentary Time questionnaire. We used a Zebris pressure platform to assess gait velocity. To assess the level of overall physical fitness, we summed the z-scores of seven tests: (1) waist circumference, (2) chair stand in 30 s, (3) arm curl in 30 s, (4) 2-min step test, (5) chair sit-and-reach test, (6) back scratch test, and (7) 8-foot up-and-go test. Overall physical fitness was obtained by summing up all physical test z-scores. Gait velocity was significantly associated with all domain-specific and total sedentary behavior (beta = -0.04 to -0.35, p < 0.05). Overall physical fitness was significantly associated with all domain-specific and total sedentary behavior (beta = -0.21 to -1.24, p < 0.001) and gait velocity (beta = 0.23 to 0.24, p < 0.001). When physical fitness was put as the mediator, significant direct effects between sedentary behavior and gait velocity disappeared. Results indicate that physical fitness fully mediates the association between sedentary behavior and gait velocity in older adults.
ER -
KASOVI$\backslash$'C, Mario, Lovro STEFAN and Martin ZVONAŘ. Domain-Specific and Total Sedentary Behavior Associated with Gait Velocity in Older Adults: The Mediating Role of Physical Fitness. \textit{International Journal of Environmental Research and Public Health}. Basel (Switzerland): MDPI AG, 2020, vol.~17, No~2, p.~1-9. ISSN~1660-4601. Available from: https://dx.doi.org/10.3390/ijerph17020593.
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