Table 3.
Methodological quality of the included studies based on the physiotherapy evidence database (PEDro) scale
| Study | Eligibility criteria | Randomized assignation | Blinded assignation | Group homogeneity | Blinded subjects | Blinded coaches | Blinded investigator | Dropout < 15% | Intention-to-treat | Group comparisons | Point and variability measures | Total PEDro score |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Prieske et al. [45] | + | + | – | – | – | – | – | + | + | + | + | 6 |
| Torres-Torrelo et al. [63] | + | + | – | + | – | – | – | + | + | + | + | 6 |
| McBride et al. [44] | + | – | – | + | – | – | – | + | + | + | + | 5 |
| Hammami et al. [48] | + | + | – | + | – | – | – | + | + | + | + | 6 |
| Negra et al. [47] | + | + | – | + | – | – | – | + | + | + | + | 6 |
| Negra et al. [46] | + | + | – | + | – | – | – | + | + | + | + | 6 |
| Christou et al. [43] | + | – | – | – | – | – | – | + | + | + | + | 4 |
| Tricoli et al. [64] | + | + | – | – | – | – | – | – | + | + | + | 4 |
| Whitehead et al. [66] | + | – | – | – | – | – | – | + | + | + | + | 4 |
| Kraemer et al. [67] | + | + | – | + | – | – | – | + | + | + | + | 6 |
| Yildiz et al. [65] | + | – | – | + | – | – | – | + | + | + | + | 5 |
| Barbalho et al. [71] | + | + | – | – | – | – | – | + | + | + | + | 5 |
| Aloui et al. [70] | + | + | – | + | – | – | – | + | + | + | + | 6 |
| Deane et al. [69] | + | – | – | – | – | – | – | + | + | + | + | 4 |
| Hammami et al. [68] | + | + | – | + | – | – | – | + | + | + | + | 6 |
The eligibility criteria have to be excluded for calculation of the total PEDro score; “+” = indicates a ‘‘yes’’ score; “−’’ = indicates a ‘‘no’’ score