12-year Television Viewing Time Trajectories and Physical Function in Older Adults
MetadataShow full item record
© 2017 American College of Sports MedicineINTRODUCTION: The purpose of this study was to identify trajectories of older adults’ television viewing (TV) time over 12 years; and, to examine their associations with performance-based measures of physical function. METHODS: Data on TV time (hours/week) and socio-demographic factors were collected at each assessment of the Australian Diabetes, Obesity and Lifestyle (AusDiab) Study (1999/2000; 2004/2005; 2011/2012), with objective measures of physical function (2.44m timed-up-and-go [TUG, seconds] and knee extensor test [KES, kg]) collected at the final (2011/2012) assessment. Regression analyses examined predictors of trajectory membership and associations with TUG and KES in those aged 60+ years in 2011/2012. RESULTS: Six TV time trajectories were identified among the 1938 participants (aged 60-97, 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 to the moderate-increasing trajectory (P < 0.001, R = 0.33). CONCLUSION: 12-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.
Showing items related by title, author, creator and subject.
Longitudinal Trajectories of Television Watching Across Childhood and Adolescence Predict Bone Mass at Age 20 Years in the Raine StudyMcVeigh, Joanne; Zhu, K.; Mountain, J.; Pennell, C.; Lye, S.; Walsh, J.; Straker, L. (2016)Sedentary behaviors such as watching television (TV) are associated with increased risk of cardiometabolic disease. The effects of TV watching during key developmental stages on skeletal health are uncertain. Hours of TV ...
Trajectories of television watching from childhood to early adulthood and their association with body composition and mental health outcomes in young adultsMcVeigh, Joanne; Smith, Anne; Howie, Erin; Straker, Leon (2016)Introduction: Prior studies examining longitudinal patterns of television (TV) watching have tended to use analytical approaches which do not allow for heterogeneity in the variation of TV watching over time. In the current ...
Trajectories of television watching from childhood to early adulthood and their association with body composition and mental health outcomes in young adultsMcVeigh, Joanne; Smith, A.; Howie, E.; Straker, L. (2016)Introduction: Prior studies examining longitudinal patterns of television (TV) watching have tended to use analytical approaches which do not allow for heterogeneity in the variation of TV watching over time. In the current ...