Table 1.

Search strategy in databases.

Database	Search Strategy	Limits	Filters
Web of Science	TITLE: (physical activity or exercise or sport) AND TITLE: (school time or school schedule or school hours or primary school or secondary school) AND TITLE: (students or children or schoolchildren or adolescents or teenagers or youth)	SCI-EXPANDED, SSCI Title Article English/Spanish	274 items filtered
PubMed	(((physical activity[Title] OR exercise[Title] OR sport[Title])) AND (school time[Title] OR school schedule[Title] OR school hours[Title] OR primary school[Title] OR secondary school[Title])) AND (students[Title] OR children[Title] OR schoolchildren[Title] OR adolescents[Title] OR teenagers[Title] OR youth[Title])	Title English/Spanish Humans	134 items filtered
Scopus	TITLE (physical AND activity OR exercise OR sport) AND TITLE (school AND time OR school AND schedule OR school AND hours OR primary AND school OR secondary AND school) AND TITLE (students OR children OR schoolchildren OR adolescents OR teenagers OR youth)	Title English/Spanish	167 items filtered
SportDiscus	TI (physical activity or exercise or sport) AND TI (school time or school schedule or school hours or primary school or secondary school) AND TI (students or children or schoolchildren or adolescents or teenagers or youth)	Title Article English/Spanish	186 items filtered