The PEDro scale was used in order to evaluate the methodological quality of the RCTs [51]. This is a scale with 11 items, on which a “1” or a “0” can be scored. There is a maximum of 10 points to be achieved; a score above six is considered as high quality, 4–5 as fair and ≤ 3 as poor quality. The methodological quality analysis of all included RCTs is reported in Table .
Methodological evaluation of the included RCTs (PEDro scale [51])
PEDro score: fair 4–5, high 6–10
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