Association Between Accelerometer-Measured Physical Activity and Mobility Limitations in Twins
Pullinen, P., Parkkari, J., Kaprio, J., Vähä-Ypyä, H., Sievänen, H., Kujala, U., & Waller, K. (2024). Association Between Accelerometer-Measured Physical Activity and Mobility Limitations in Twins. Journal of Aging and Physical Activity, Early online. https://doi.org/10.1123/japa.2023-0445
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Journal of Aging and Physical ActivityAuthors
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2024Copyright
© 2024 The Authors. Published by Human Kinetics, Inc.
Background: The associations between mobility limitations and device-measured physical activity are sparsely studied. In this study, these associations are studied among community-dwelling older twins.
Methods: This cross-sectional study utilized data gathered in 2014-2016 for the MOBILETWIN study. Participants were twins born in Finland between 1940 and 1944 (774 participants, mean age 73 years). Physical activity was measured with a hip-worn accelerometer. Mobility limitations were assessed with a questionnaire.
Results: Individual-level analyses revealed that physical activity was associated with mobility limitations. Participants with severe mobility limitations took 2,637 (SD = 1,747) steps per day, those with some mobility limitations 4,437 (SD = 2,637) steps, and those without mobility limitations 7,074 (SD = 2,931) steps (p < .05). The within-twin pair analyses revealed the same pattern for the 144 dizygotic twin pairs, but no associations were seen for the 117 monozygotic twin pairs.
Conclusions: Accelerometer-measured physical activity and mobility limitations were associated in community-dwelling older adults. Genetic factors may explain some of the variations in physical activity.
Significance: A personalized exercise program to promote increased physical activity should be provided for older adults who report mobility difficulties. Future research is needed to examine causality between physical activity and mobility limitations.
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https://converis.jyu.fi/converis/portal/detail/Publication/243376757
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Additional information about funding
MOBILETWIN study was supported by the Finnish Ministry of Education and Culture (grant OKM/56/626/2013 to Urho Kujala). Data collection and analyses in the twin cohort have been supported by the Academy of Finland (Grants 264146, 308248, 312073, 336823, and 352792 to Jaakko Kaprio). Jaakko Kaprio acknowledges support by the Academy of Finland (Grants 265240 and 263278) and the Sigrid Juselius Foundation. ...License
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