Table 2.

The complete search strategy for each database.

Database	Specificities of the Databases	Search Strategy	Number of Articles in Automatic Search
PubMed	None to report	(recreation * OR untrain * OR health) AND (Soccer [Title/Abstract] OR Football [Title/Abstract])	7700
Scopus	Search for title and abstract also includes keywords	(TITLE-ABS-KEY (soccer OR football) AND ALL (recreation * OR untrain * OR health))	18,909
SPORTDiscus	None to report	TI (soccer or Football) AND TX (recreation * OR untrain * OR health)	4752
Web of Science	Search for title and abstract also includes keywords and its designated “topic”	Soccer OR Football (Title) and recreation * OR untrain * OR health (Topic)	5874

*: is the code for extension of the word.