2.2. Randomization and Blinding
This study was conducted as a prospective randomized controlled trial. Participants were randomly assigned to two groups: a bilateral group that performed bilateral exercise on the affected and healthy sides and a unilateral group that performed exercise therapy only on the affected side. Computer-generated block randomization (block size, 4, revealed to the study group at the first exercise) was used for randomization such that both groups contained equal numbers of patients. Group allocation was performed by the first author; the examiner and patients were blinded to group assignment until the CPM practice began. As the groups performed different CPM practices, the participants could not be masked to the group assignment.