12-year television viewing time trajectories and physical function in older adults
Journal article
Reid, N., Healy, Genevieve N., Daly, Rob, Baker, Peter, Eakin, Elizabeth, Dunstan, David, Owen, Neville and Gardiner, Paul A.. (2017). 12-year television viewing time trajectories and physical function in older adults. Medicine and Science in Sports and Exercise. 49(7), pp. 1359 - 1364. https://doi.org/10.1249/MSS.0000000000001243
Authors | Reid, N., Healy, Genevieve N., Daly, Rob, Baker, Peter, Eakin, Elizabeth, Dunstan, David, Owen, Neville and Gardiner, Paul A. |
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Abstract | Introduction: The purposes of this study were to identify trajectories of older adults" television viewing (TV) time for 12 yr and to examine their associations with performance-based measures of physical function. Methods: Data on TV time (hIwkj1 ) and sociodemographic factors were collected at each assessment of the Australian Diabetes, Obesity and Lifestyle Study (1999/2000, 2004/ 2005, and 2011/2012), with objective measures of physical function (2.44 m timed up and go [TUG, s] and knee extensor strength [KES, kg] tests) collected at the final (2011/2012) assessment. Regression analyses examined predictors of trajectory membership and associations with TUG and KES in those 60+ yr of age in 2011/2012. Results: Six TV time trajectories were identified among the 1938 participants (age, 60–97 yr; 54% female): consistently low (9.7%), low-increasing (22.3%), moderate-decreasing (13.5%), moderate-increasing (30.3%), consistently high (18.9%), and high-increasing (5.2%). There were no statistically significant relationships with TUG (P > 0.05). In the fully adjusted model, KES performance was significantly better in the consistently low, low-increasing, and consistently high trajectories, compared with the moderate-increasing trajectory (P < 0.001, R2 = 0.33). Conclusion: Twelve-year trajectories of TV time were associated with muscle strength in older adults. These findings suggest that patterns of sedentary behavior can be a determinant of muscle strength in later life. |
Year | 2017 |
Journal | Medicine and Science in Sports and Exercise |
Journal citation | 49 (7), pp. 1359 - 1364 |
Publisher | Lippincott Williams & Wilkins |
ISSN | 0195-9131 |
Digital Object Identifier (DOI) | https://doi.org/10.1249/MSS.0000000000001243 |
Scopus EID | 2-s2.0-85014004392 |
Page range | 1359 - 1364 |
Research Group | Mary MacKillop Institute for Health Research |
Publisher's version | File Access Level Controlled |
Place of publication | United States |
Editors | L. B. Gladden |
https://acuresearchbank.acu.edu.au/item/86vwz/12-year-television-viewing-time-trajectories-and-physical-function-in-older-adults
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