“…To measure pain intensity, nine studies used the Visual Analogic Scale (VAS), 43,[47][48][49]51,52,55,56,59 six studies used Numerical Pain Rating Scale (NRS), [44][45][46]50,53,58 one study used McGill Pain Questionnaire (MPQ) 57 and one study did not measure pain intensity. 54 Functional disability was evaluated by using Oswestry Low Back Pain Disability Index (ODI, 0-100) in eleven studies, [43][44][45]47,49,[52][53][54]56,58,59 Oswestry Low Back Pain Disability Index (ODI,10-60) in one study, 51 Roland and Morris Disability Questionnaire (RMDQ) in four studies 46,48,50,57 and Aberdeen Low Back Pain Disability Scale (ALBPS) in one study. 55 Risk of bias and quality assessment of studies Quality assessment of included studies using the PEDro scale is shown in Table 2, which demonstrated that the range of the scores was between 4/10 and 8/10 (mean 6.…”