We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Contemporaneous trajectories of physical activity and screen time in adolescents.
- Authors
Riglea, Teodora; Doré, Isabelle; O'Loughlin, Jennifer; Bélanger, Mathieu; Sylvestre, Marie-Pierre
- Abstract
Adolescents often report low moderate-to-vigorous physical activity (MVPA) and high screen time. We modeled sex-specific MVPA and screen time trajectories during adolescence and identified contemporaneous patterns of evolution. Data were drawn from 2 longitudinal investigations. The Nicotine Dependence in Teens (NDIT) study included 1294 adolescents recruited at age 12–13 years who completed questionnaires every 3 months for 5 years. The Monitoring Activities of Teenagers to Comprehend their Habits (MATCH) study included 937 participants recruited at age 9–12 years who completed questionnaires every 4 months for 7 years. MVPA was measured as the number of days per week of being active for at least 5 min (NDIT) or 60 min (MATCH). In both studies, screen time was measured as the number of hours spent weekly in screen activities. In each study, sex-specific group-based trajectories were modeled separately for MVPA and screen time from grade 7 to 11. Contemporaneous patterns of evolution were examined in mosaic plots. In both studies, 5 MVPA trajectories were identified in both sexes, and 4 and 5 screen time trajectories were identified in boys and girls, respectively. All combinations of MVPA and screen time trajectories were observed. However, the contemporaneous patterns of evolution were favourable in 14%–31% of participants (i.e., they were members of the stable high MVPA and the lower screen time trajectories). Novelty: MVPA and screen time trajectories during adolescence and their combinations showed wide variability in 2 Canadian studies. Up to 31% of participants showed favourable contemporaneous patterns of evolution in MVPA and screen time. Using uniform methods for trajectory modeling may increase the potential for replication across studies.
- Subjects
CANADA; PHYSICAL activity; SCREEN time; SEX distribution; QUESTIONNAIRES; DESCRIPTIVE statistics; LONGITUDINAL method; ADOLESCENCE
- Publication
Applied Physiology, Nutrition & Metabolism, 2021, Vol 46, Issue 6, p676
- ISSN
1715-5312
- Publication type
Article
- DOI
10.1139/apnm-2020-0631