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Longitudinal changes in moderate-to-vigorous-intensity physical activity in children and adolescents : A systematic review and meta-analysis
Farooq, Abdulaziz Martin, Anne Janssen, Xanne Wilson, Mathew G. Gibson, Ann-Marie Hughes, Adrienne Reilly, John J.
Farooq, Abdulaziz
Martin, Anne
Janssen, Xanne
Wilson, Mathew G.
Gibson, Ann-Marie
Hughes, Adrienne
Reilly, John J.
Abstract
Moderate-to-vigorous-intensity physical activity (MVPA) is important for childhood obesity prevention and treatment, yet declines with age. Timing and magnitude of the decline in MVPA in children and adolescents are unclear but important for informing effective obesity intervention development. This systematic review aimed to determine and compare the year-to-year changes in MVPA among children and adolescents. Longitudinal studies were identified by searching 10 relevant databases up to December 2018. Studies were eligible for inclusion if they reported accelerometer-assessed MVPA (min day−1) separately for boys and girls and had follow-up duration of at least 1 year. After screening 9,232 studies, 52 were included representing 22,091 aged 3 to 18 year olds (boys=8,857; girls=13,234). Pooled-analysis of the relative change in MVPA per year showed a decline of −3.4% (95% CI, −5.9 to −0.9) in boys and −5.3% (95% CI, −7.6 to −3.1) in girls, across all age groups. There were notable declines in MVPA at age 9 for both boys (−7.8%, 95% CI, −11.2 to −4.4) and girls (−10.2%, 95% CI, −14.2 to −6.3). The relative decline in MVPA affects both sexes from an early age; however, it is greater among girls. Interventions to promote MVPA should start before adolescence.
Keywords
accelerometer, adolescents, children, moderate-to-vigorous, physical activity
Date
2020
Type
Journal article
Journal
Obesity Reviews
Book
Volume
21
Issue
1
Page Range
1-15
Article Number
Article e12953
ACU Department
School of Behavioural and Health Sciences
Faculty of Health Sciences
Faculty of Health Sciences
Relation URI
Source URL
Event URL
Open Access Status
Published as ‘gold’ (paid) open access
License
CC BY 4.0
File Access
Open