Objectively measured sedentary behaviour and health and development in children and adolescents: systematic review and meta-analysis

摘要: Sedentary behaviour has emerged as a unique determinant of health in adults. Studies children and adolescents have been less consistent. We reviewed the evidence to determine if total volume patterns (i.e. breaks bouts) objectively measured sedentary were associated with adverse outcomes young people, independent moderate-intensity vigorous-intensity physical activity. Four electronic databases (EMBASE MEDLINE, Ovid EMBASE, PubMed Scopus) searched (up 12 November 2015) retrieve studies among 2- 18-year-olds, which used cross-sectional, longitudinal or experimental designs, examined associations (adiposity, cardio-metabolic, fitness, respiratory, bone/musculoskeletal, psychosocial, cognition/academic achievement, gross motor development other outcomes). Based on 88 eligible observational studies, level grading quantitative meta-analyses indicated that there is limited available are when accounting for activity focusing low risk bias. Quality from robust designs methods, objective measures sitting, examining various outcomes, needed better understand overall determinants adolescents.