Table 3.

Studies with predominantly specificity and volume of futsal-specific practice analysis.

Study	Sample	Main Variables	Procedure	Results	Quality Score
Pereira Ramalho Serrano, Leal dos Santos [21]	Study 1: 371 futsal players from three levels of expertise—elite (n = 60), medium (n = 160) and regional (n = 151) Study 2: 294 futsal players—24 from national team A and 270 amateurs.	Sport-initiation, early sport involvement and specialization in futsal training	Validated questionnaires from [49] which provides retrospective information about the sport activities experienced throughout athletes′ career.	Elite players are distinguished from lower-level competitive players for their earlier dedication to the sports training (specifically to futsal).	86.7%