A Systematic Review and Meta-analysis of the Effect of Active Video Games on Postural Balance.

Objective: To conduct a comprehensive systematic review and meta-analysis of the effects of active video game (AVG) interventions on postural balance across all ages in populations with and without neurologic impairments, using all types of platforms.

Data Source: Six databases (PubMed, PsycINFO, Sport Discus, MEDLINE, Web of Science, and Google Scholar) were reviewed by December 31, 2020.

Study Selection: The protocol was registered in the International Prospective Register of Systematic Reviews (PROSPERO: CRD42020204191). For inclusion, a study must be original, published in English peer-reviewed venues and employed AVGs as the sole or primary intervention to enhance, maintain, or regain postural balance. At least 2 within- or between-subjects conditions must be included with ≥10 participants per condition.

Data Extraction: Three reviewers independently performed data extraction and assessed the risk of bias.

Data Synthesis: 129 studies were identified, with 102 eligible for meta-analysis. The total number of tested participants was 6407 (60.0% women, M=55.1 years, range=3-99 years, SD=22.6). The average intervention duration was 35.6 min/session with 3.1 sessions/week for 7.6 weeks. The overall effect favored AVG interventions (Hedges' g=0.469; 95% confidence interval [CI]=0.407-0.531). Although the overall study quality was relatively low, the analysis expectedly indicated significantly larger effects (P<.001) for AVG-interventions over passive controls (Hedges' g=0.627; 95% CI=0.466-0.788), but importantly also favored AVG-interventions over conventional treatment (Hedges' g=0.389; 95% CI=0.311-0.468). All clinical populations responded positively, although with different effect sizes (P=.023). Children experienced larger treatment effects (Hedges' g=0.550; 95% CI=0.336-0.764), closely followed by seniors (Hedges' g=0.529; 95% CI=0.402-0.656). The largest intervention effect on balance improvements was seen in healthy people without a medical condition (Hedges' g=0.609; 95% CI=0.465-0.753).

Conclusions: AVGs can produce postural balance improvements and better postural maintenance. All populations could benefit from AVG interventions.