Table 1.

Search strings.

Database	Search String
PUBMED	(physical activity OR physical inactivity OR sedentary lifestyle) AND (polic* OR health policy OR health promotion OR health impact) AND (adolescent OR young OR children OR youth OR teenager) AND (Review OR systematic OR Metanalysis)
SCOPUS	( TITLE-ABS-KEY ( physical AND activity ) OR TITLE-ABS-KEY ( physical AND inactivity ) OR TITLE-ABS-KEY ( sedentary AND lifestyle ) AND TITLE-ABS-KEY ( polic* OR intervention ) AND TITLE-ABS-KEY ( health OR promotion OR impact ) AND TITLE-ABS-KEY ( adolescent OR young OR children OR youth OR teenager ) ) AND ( LIMIT-TO ( PUBYEAR , 2017 ) OR LIMIT-TO ( PUBYEAR , 2016 ) OR LIMIT-TO ( PUBYEAR , 2015 ) ) AND ( LIMIT-TO ( DOCTYPE , “re” ) ) OR LIMIT-TO ( PUBYEAR , 2014 ) OR LIMIT-TO ( PUBYEAR , 2013 ) OR LIMIT-TO ( PUBYEAR , 2012 ) OR LIMIT-TO ( PUBYEAR , 2011 ) OR LIMIT-TO ( PUBYEAR , 2010 ) ) AND ( LIMIT-TO ( DOCTYPE , “re” ) )
COCHRANE	(physical activity OR physical inactivity OR sedentary lifestyle) AND (polic* OR health policy OR health promotion OR health impact) AND (adolescent OR young OR children OR youth OR teenager) AND (Review OR systematic OR Meta-Analysis) in Title, Abstract, Keywords, Publication Year from 2010 to 2017 in Cochrane Reviews’