Related Experiment Video
Updated: Mar 7, 2026
Methodology for Establishing a Community-Wide Life Laboratory for Capturing Unobtrusive and Continuous Remote Activity and Health Data
Published on: July 27, 2018
Twelve-Year Television Viewing Time Trajectories and Physical Function in Older Adults
Natasha Reid1, Genevieve N Healy, Robin M Daly
11School of Public Health, The University of Queensland, Brisbane, AUSTRALIA; 2School of Physiotherapy, Curtin University, Perth, AUSTRALIA; 3Baker IDI Heart and Diabetes Institute, Melbourne, AUSTRALIA; 4Mary MacKillop Institute of Health Research, Australian Catholic University, Melbourne, AUSTRALIA; 5Institute for Physical Activity and Nutrition, Deakin University, Burwood, AUSTRALIA; 6Department of Medicine, Alfred Hospital, Monash University, Melbourne, AUSTRALIA; 7School of Public Health and Preventive Medicine, Monash University, Melbourne, AUSTRALIA; 8School of Sport Science, Exercise and Health, The University of Western Australia, Perth, AUSTRALIA; 9Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, AUSTRALIA; 10Swinburne University of Technology, Melbourne, AUSTRALIA; 11Centre for Health Services Research, The University of Queensland, Brisbane, AUSTRALIA; and 12Mater Research Institute, The University of Queensland, South Brisbane, AUSTRALIA.
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 (h·wk) 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, R = 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.
More Related Videos
04:13Using a Real-Time Locating System to Measure Walking Activity Associated with Wandering Behaviors Among Institutionalized Older Adults
Published on: February 8, 2019
05:26Author Spotlight: Innovations in iTUG Test for Enhanced Risk Assessment and Cognitive Insights
Published on: October 25, 2024
Related Concept Videos
01:30Cognitive Development During Adulthood
01:27Pharmacodynamics in Geriatric Patients: Effects of Age
01:19The Effect of Aging on Tissues
01:00Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Distribution
01:18Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Metabolism
01:15Drug Dosing: Geriatric Patients