Table 1.

Risk of bias assessment criteria.

Criteria		Definition	Scoring
			0	1	2
A	Peer-reviewed	Study published in peer- reviewed journal	No	Yes	-
B	Number of participants	Number of participants included in study findings	<5	jun/30	>31
C	Population defined	Age, gender, sport, time experience (or level) was described	No	Partly	Yes
D	Experimental design	Experimental design of the study period was described and replicable	No	Partly	Yes
E	Sleep parameters	The sleep parameters were described	No	Yes	-