The Physical Activity 4 Everyone Cluster Randomized Trial: 2-Year Outcomes of a School Physical Activity Intervention Among Adolescents.
Few interventions have been successful in reducing the physical activity decline typically observed among adolescents. The aim of this paper is to report the 24-month effectiveness of a multicomponent school-based intervention (Physical Activity 4 Everyone) in reducing the decline in moderate to vigorous physical activity (MVPA) among secondary school students in disadvantaged areas of New South Wales, Australia.



A cluster RCT was conducted in five intervention and five control schools with follow-up measures taken at 24 months post-randomization.



The trial was undertaken within secondary schools located in disadvantaged communities in New South Wales, Australia.



A multicomponent school-based intervention based on the Health Promoting Schools Framework was implemented. The intervention consisted of seven physical activity promotion strategies that targeted the curriculum (teaching strategies to increase physical activity in physical education lessons, student physical activity plans, and modification of school sport program); school environment (recess/lunchtime activities, school physical activity policy); parents (parent newsletters); and community (community physical activity provider promotion). Six additional strategies supported school implementation of the physical activity intervention strategies.



Minutes per day spent in MVPA, objectively measured by accelerometer.



Participants (N=1,150, 49% male) were a cohort of students aged 12 years (Grade 7) at baseline (March-June 2012) and 14 years (Grade 9) at follow-up (March-July 2014). At 24-month follow-up, there were significant effects in favor of the intervention group for daily minutes of MVPA. The adjusted mean difference in change in daily MVPA between groups was 7.0 minutes (95% CI=2.7, 11.4, p<0.002) (analysis conducted December 2014-February 2015). Sensitivity analyses based on multiple imputation were consistent with the main analysis (6.0 minutes, 95% CI=0.6, 11.3, p<0.031).



The intervention was effective in increasing adolescents' minutes of MVPA, suggesting that implementation of the intervention by disadvantaged schools has the potential to slow the decline in physical activity.



Australian New Zealand Clinical Trials Registry ACTRN12612000382875.
Hunter New England Population Health, Wallsend, New South Wales, Australia; School of Medicine and Public Health, University of Newcastle, Newcastle, New South Wales, Australia; Hunter Medical Research Institute, Newcastle, New South Wales, Australia. Electronic address: rachel.sutherland@hnehealth.nsw.gov.au.
Rachel L
RL
Sutherland
Hunter New England Population Health, Wallsend, New South Wales, Australia; School of Medicine and Public Health, University of Newcastle, Newcastle, New South Wales, Australia; Hunter Medical Research Institute, Newcastle, New South Wales, Australia.
Elizabeth M
EM
Campbell
Priority Research Centre in Physical Activity and Nutrition, School of Education, University of Newcastle, Newcastle, New South Wales, Australia.
David R
DR
Lubans
Priority Research Centre in Physical Activity and Nutrition, School of Education, University of Newcastle, Newcastle, New South Wales, Australia.
Philip J
PJ
Morgan
Hunter New England Population Health, Wallsend, New South Wales, Australia; School of Medicine and Public Health, University of Newcastle, Newcastle, New South Wales, Australia; Hunter Medical Research Institute, Newcastle, New South Wales, Australia.
Nicole K
NK
Nathan
Hunter New England Population Health, Wallsend, New South Wales, Australia; School of Medicine and Public Health, University of Newcastle, Newcastle, New South Wales, Australia; Hunter Medical Research Institute, Newcastle, New South Wales, Australia.
Luke
L
Wolfenden
Early Start Research Institute and School of Education, University of Wollongong, Wollongong, New South Wales, Australia; Illawarra Health and Medical Research Institute, Wollongong, New South Wales, Australia.
Anthony D
AD
Okely
Hunter New England Population Health, Wallsend, New South Wales, Australia; Hunter Medical Research Institute, Newcastle, New South Wales, Australia.
Karen E
KE
Gillham
Rowett Institute of Nutrition and Health, University of Aberdeen, Scotland, United Kingdom.
Jenna L
JL
Hollis
School of Medicine and Public Health, University of Newcastle, Newcastle, New South Wales, Australia; Hunter Medical Research Institute, Newcastle, New South Wales, Australia.
Chris J
CJ
Oldmeadow
Hunter New England Population Health, Wallsend, New South Wales, Australia; School of Medicine and Public Health, University of Newcastle, Newcastle, New South Wales, Australia; Hunter Medical Research Institute, Newcastle, New South Wales, Australia.
Amanda J
AJ
Williams
Hunter New England Population Health, Wallsend, New South Wales, Australia; Hunter Medical Research Institute, Newcastle, New South Wales, Australia.
Lynda J
LJ
Davies
Hunter New England Population Health, Wallsend, New South Wales, Australia; Hunter Medical Research Institute, Newcastle, New South Wales, Australia.
Jarrod S
JS
Wiese
School of Medicine and Public Health, University of Newcastle, Newcastle, New South Wales, Australia; Hunter Medical Research Institute, Newcastle, New South Wales, Australia.
Alessandra
A
Bisquera
Hunter New England Population Health, Wallsend, New South Wales, Australia; School of Medicine and Public Health, University of Newcastle, Newcastle, New South Wales, Australia; Hunter Medical Research Institute, Newcastle, New South Wales, Australia.
John H
JH
Wiggers
D000293:Adolescent; D002648:Child; D015444:Exercise / Q000502:physiology*; D005260:Female; D006293:Health Promotion; D006801:Humans; D008297:Male; D009517:New South Wales; D010806:Physical Education and Training; D011203:Poverty; D012574:Schools; D013177:Sports