The Effectiveness of Tai Chi Assisted by Virtual Environments for Chronic Musculoskeletal Pain

We were highly interested in the recent article “Clinical Efficacy of Virtual Reality Cave Automatic Virtual Environments (CAVE) for Chronic Musculoskeletal Pain in Older Adults: A Randomized Controlled Trial.”1 The authors concluded that 8 weeks of tai chi assisted by virtual environments had significant and long-term improvement effects on pain severity for patients with chronic musculoskeletal pain. The results supported the primary hypothesis; however, we would like to draw the attention of the authors and readers to several potential biases that may influence the true effect of this randomized controlled trial.