Is back pain during childhood or adolescence associated with muscle strength, muscle endurance or aerobic capacity: three systematic literature reviews with one meta-analysis

Table 1 Methodological checklist objective 1

Ref numb.	Name of first author/year	Study sample	Data collection	Studied factors: TMS	Back pain	Score and %
[24]	Balagué 1993	N-N	Y	Y-Y-Y	Y-Y-Y	7/9 78 %
[25]	Balagué 2010	N-N	?	Y-Y-Y	Y-Y-N	5/9 56 %
[26]	Merati 2004	Y-N	Y	Y-Y-Y	Y-Y-N	7/9 78 %
[27]	Newcomer 1996	N-N	?	Y-Y-Y	Y-Y-N	5/9 56 %

ISSN: 2045-709X