J 2020

Domain-Specific and Total Sedentary Behavior Associated with Gait Velocity in Older Adults: The Mediating Role of Physical Fitness

KASOVIĆ, Mario, Lovro STEFAN and Martin ZVONAŘ

Basic information

Original name

Domain-Specific and Total Sedentary Behavior Associated with Gait Velocity in Older Adults: The Mediating Role of Physical Fitness

Authors

KASOVIĆ, Mario (191 Croatia, guarantor, belonging to the institution), Lovro STEFAN (191 Croatia) and Martin ZVONAŘ (203 Czech Republic, belonging to the institution)

Edition

International Journal of Environmental Research and Public Health, Basel (Switzerland), MDPI AG, 2020, 1660-4601

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

30306 Sport and fitness sciences

Country of publisher

Switzerland

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 3.390

RIV identification code

RIV/00216224:14510/20:00116343

Organization unit

Faculty of Sports Studies

DOI

UT WoS

000516827400214

Keywords in English

screen-time; walking speed; performance; aged

Tags

Tags

International impact, Reviewed
Změněno: 4/8/2023 12:04, Mgr. Pavlína Roučová, DiS.

Abstract

V originále

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.