Correlates of children’s time-specific physical activity: A review of the literature

Table 4 Descriptive statistics of the studies included in the systematic review

	Summary Statistics
	School Break Time	After-School
Country
Australia	[50, 63]	[54, 57]
Norway	[59, 60]	-
United Kingdom	[48, 49, 62, 64]	[58]
United States	-	[29, 51–53, 55, 56, 65]
Canada	[61]	-
Belgium	[47]	-
Cyprus	[46]	-
Study design
Observational (Cross-sectional)	[50, 59–63]	[29, 51–58]
Interventional (Randomised Controlled Trial)	[46, 47]	-
Interventional (Pretest-Posttest)	[50]	-
Interventional (Quasi-experimental)	[48, 49]	-
Questionnaire validation study	[64]	[65]
Theoretical framework
Social Ecological model	[62, 63]	[29, 54, 57]
Environmental correlates of an Ecological framework	[59, 60]	-
Social Cognitive Theory	-	[51, 55, 65]
Theory of Reasoned Action	-	[55, 65]
Not discussed	[46–50, 61, 64]	[52, 53, 56, 58]
Assessment of physical activity
Observation	[50, 62, 63]	-
Objective - accelerometry	[47, 49, 50, 64]	[29, 51–53, 56, 57]
Objective - heart rate	[48, 49]	-
Objective - pedometer	[46]	-
Self-report	[59–61]	[29, 54, 55, 58, 65]
Assessment of correlate variable
Observation	[46–50, 62, 63]	[51, 52]
Proxy-report (school principal)	[59–61]	-
Proxy-report (parent)	-	[52, 53, 57, 58]
Self-report	[59–62]	[29, 51–56, 65]
Objective	[62, 64]	[52, 56, 58]

ISSN: 1479-5868