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Eligibility - If the subjects were found to havePiriformis syndrome, all inclusion and exclusioncriteria (Presence of abnormality in congenitalstructures or acquired in the column, Discpathology and Facet joint pathology, seriousorthopedic diseases, mental incapacity, anyinfectious disease, and neoplasia) were checked.

1. subjects were randomly allocated to groups (in a crossover study, subjects were randomly allocated an order in which treatments were received) NO

“The initial 21 participants were assigned to agroup I; receive Neural Mobilization and conventionalphysical therapy; while a second group of 21 participants were assigned as Group II to receive only conventional physical therapy.

2. allocation was concealed - NO

Allparticipants were blinded to their group assignment,while the investigator was aware of participant group assignment

3. the groups were similar at baseline regarding the most important prognostic indicators