Efficacy of virtual reality on balance impairment in ataxic cerebral palsy children: randomized controlled trial.

The study included only children aged nine to fourteen who could walk independently without assistance and had Gross Motor Function Classification System level I or II, so it does not show what happens in younger children, non-walkers, or more severely impaired children. Children with visual or auditory impairments, epilepsy, structural abnormalities, or behavioural and emotional dysregulation were excluded, so the results may not apply to children with those common comorbidities. Only the children were blinded; the paper does not say that the therapists or the examiner were blinded to group assignment. The virtual reality group received physical therapy plus virtual reality, while the control group received physical therapy alone, so the total improvement in the virtual reality group cannot be separated into exercise and game effects. The paper does not report dropouts after randomization, so it is unclear whether all 64 children completed the three-month program. The authors state that longer follow-up is needed to see whether improvements are maintained, and they did not investigate psychosocial aspects of improvement. The study was done in one outpatient clinic, so the results may not generalise to other settings.

Do not read this as evidence that virtual reality games alone improve balance. The virtual reality group also received physical therapy, and the control group received the same physical therapy without games, so the extra benefit was from adding games. Do not apply it to children who cannot walk independently, because all participants were Gross Motor Function Classification System level I or II and walked without assistance.