*4.5. Qualitative Assessment of Study Methodology*

One reviewer (S.P.) assessed the quality of the nine selected studies by assigning each a PEDro score (OTseeker, 2003), and the results were verified by the other reviewer (A.B.). The PEDro score ranges from 0–10 and the quality of a study is classified as "poor" (≤3), "fair" (4–5), "good" (6–8), or "excellent" (9–10) [34]. Studies deemed to be of "fair" to "good" quality (4–7) were included in this analysis. Any disagreements between the investigators with respect to the qualitative assessment of the studies were resolved by discussion.
