Table 1.

Terms combinations and search results on each database.

Database	Terms Combination	Results
Pubmed	(“Caffeine”[Mesh]) OR “Coffee” [Mesh] AND “Martial Arts”[Mesh]	19
Web of Science	Caffeine AND Combat Sports	35
Scopus	Caffeine OR Coffee AND Combat Sports OR Martial Arts OR Judo OR Taekwondo OR Wrestling OR Boxing OR Jiu-Jitsu	19
Cochrane Library	Caffeine AND Martial Arts	19