Table 2.

Quality assessment (PEDro) of included studies.

First author, year	Eligibility criteria specified	Randomization	Concealed allocation	Baseline comparability	Patients blinded	Care provider blinded	Assessor blinded	Adequate follow up	Intention-to-treat	Between-group comparisons	Point estimates and variability	Score
Cumps et al., 2007	–	–	–	–	–	–	–	✓	–	✓	✓	3
Emery et al., 2007	✓	✓	✓	✓	–	–	✓	✓	✓	✓	✓	9
Emery and Meeuwisse, 2010	✓	✓	✓	✓	–	–	✓	–	✓	✓	✓	8
Hewett et al., 1999	–	–	–	–	–	–	–	–	–	✓	–	1
LaBella et al., 2011	✓	✓	–	–	–	–	–	✓	✓	✓	✓	6
Longo et al., 2012	✓	✓	✓	–	–	–	✓	✓	✓	✓	✓	8
Mandelbaum et al., 2005	✓	–	–	–	–	–	–	–	–	✓	✓	3
McGuine and Keene, 2006	✓	✓	–	✓	–	–	–	–	✓	✓	✓	6
McHugh et al., 2007	–	–	–	–	–	–	–	–	–	✓	✓	2
Olsen et al., 2005	✓	✓	✓	✓	–	–	✓	✓	✓	✓	✓	9
Owoeye et al., 2014	–	✓	✓	✓	–	–	–	✓	✓	✓	✓	7
Pfeiffer et al., 2006	–	–	–	–	–	–	–	–	–	✓	✓	2
Soligard et al., 2008	✓	✓	✓	–	–	–	✓	–	✓	✓	✓	7
Steffen et al., 2008	✓	✓	✓	–	–	–	✓	✓	✓	✓	✓	8
Walden et al., 2012	✓	✓	✓	✓	–	–	–	–	✓	✓	✓	7
Wedderkopp et al., 1999	–	✓	–	–	–	–	–	–	–	✓	✓	3

✓ Criterion fulfilled; – Criterion not fulfilled.