2.2. Design and Randomization
pain
MAY
This randomised controlled trial was conducted between January 2019 and May 2021. The participants who met the inclusion criteria were randomised into two groups (1 : 1) using a computer-generated randomisation list. Block randomisation with a fixed block size of two was used to ensure similar sample sizes across the conditions. The groups included an intervention group, involving a usual rehabilitation program combined with pain management that targeted pain perception and activity avoidance, and a control group, involving only the usual rehabilitation program. An independent investigator (J. Y.) performed the randomisation after baseline assessment. A physical therapist in charge of each patient assessed the participants and implemented their usual rehabilitation and/or pain management programs.