Effect of a massage chair (BFR-M8040) on neck and shoulder pain in office workers: A randomized controlled clinical trial

•This randomized controlled trial was conducted to investigate the potential effects of a massage chair (BFR-M8040) on neck and shoulder pain among office workers.•Fifty-eight participants completed a 12-week follow-up and analyzed (29 in the control group and 29 in the experimental group). There was a significant decrease in the experiment group in both scales for primary outcome measures. For secondary outcome measures, statistically significant increases were observed in pressure pain threshold, along with a slight increase in the quality-of-life measures.