Inclusive dates

Not stated

1980-February 2008

1990-March 2010

2006-2011

2000-2011

1950-2015

Databases searched

Medline

Psyc-Info

PubMed

EBSCOhost

ScienceDirect

Medline

SPORTDiscus

PsychINFO;

Cochrane Database of Systematic Reviews;

Database of Abstracts of Reviews of Effectiveness;

Cochrane Central Register of Controlled Trials;

EMBASE;

CINAHL;

HMIC;

ASSIA;

SIGLE;

Current Contents;

ERIC;

TRANSPORT;

Environline;

EPPI Centre Databases;

NRR

Medline

SPORTDiscus

Academic Search Premier

Health Source―Consumer Edition

Health Source: Nursing/Academic Edition

PubMed

Medline

List at EBSCO (Academic Search Complete)

Web of science (Current Contents Connect),

Latindex

SciELO.org

Editors: Elsevier, Wiley, Springer, Taylor & Francis

Medline

Embase

PsychINFO

Search terms

1) after-school

2) physical activity

3) intervention

1) after-school program; school-based setting

2) physical activity behavior

3) study design (intervention, quasi, or controlled)

1) community, gym

2) physical activity, exercise, play

3) child, adolescent, youth

1) after school

2) obesity

3) intervention, program

1) school-based or after-school

2) physical activity interventions or prevention programs

3) obesity or overweight

4) child or adolescent

5) BMI or body composition or body fat

1) afterschool (freetext terms after school and extra-curricular)

2) physical activity (MeSH terms sports and exercise, free-text word sport, exercise and physical activity)

3) children (MeSH terms Child and Adolescent, free-text words “child*” or teenager or adolescent)