This meta-analysis followed the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA-P) reporting guidelines[24]. The registration number is CRD42023401526.
2.1 Data source
The electronic databases of China National Knowledge Infrastructure (CNKI, in Chinese), Wan Fang (in Chinese), Web of Science (in English), Embase (in English), and PubMed (in English) were searched for studies investigating the influence of exergaming on children’s executive function. The publication time of articles was from January 2010 to February 2023. The key search terms were (“exergame” OR “active video game” OR “video game”) AND “child” AND (“executive function” OR “cognitive functions” OR “inhibition control” OR “working memory” OR “cognitive flexibility”).
2.2 Literature inclusion and exclusion criteria
2.2.1 Subjects: Healthy children or special children aged 4-12 years. Healthy children: no previous history of neurological or psychiatric disorders. Special children: children diagnosed with autism spectrum disorder (ASD), attention deficit hyperactivity disorder (ADHD), or other disorders by clinical or parental reports.
2.2.2 Intervention: Exergaming or active video games, such as using Microsoft Kinect, or Nintendo Wii exergaming console.
2.2.3 Outcomes: Executive function and its three components (i.e., cognitive flexibility, inhibition control, working memory).
2.2.4 Exclusion criteria: Subjects included adults only; article types were limited to review studies, dissertations, conference reports, book chapters, or policy documents; the intervention measures were either non-exergaming or unknown; outcomes did not include executive functions or their components; and data was either missing or incomplete.
2.3 Literature screening and data extraction
After removing duplicates, all titles and abstracts were independently screened by two researchers (JC, XW) based on inclusion and exclusion criteria. The full texts of the papers were screened based on the initial screening. The opinions of the third author (SY) would be consulted if there was an inconsistency in screening until a consensus was reached.
2.4 Literature quality assessment
Two researchers (JC, XW) assessed the literature quality with the Jadad scale[25] and the Cochrane risk of bias assessment tool after full-text reading. The Jadad scale is scored by evaluating the generation of random sequences, randomization hiding, blindness ("appropriate"=2, "unclear"=1, "inappropriate"=0), and withdrawal ("described=1", "not described"=0). A score of 0-3 is deemed low quality, and a score of 4-7 is regarded as high quality. The Cochrane library systematic review manual was divided into seven areas. The two researchers (JC, XW) independently evaluated the potential biases of the study, such as selection bias, measurement bias, implementation bias, follow-up bias, bias report and other biases. In disagreement, the literature risk bias was determined through a collective discussion.
2.5 Statistical analysis
Review Manager 5.3 was used to summarize and statistically analyze the results of all included studies. Standardized mean difference (SMD) was chosen as the effect size, and 95% confidence intervals (CI) were calculated. Heterogeneity analysis was carried out, and I² = 0 indicated no heterogeneity. The random effect model was used when I² was more significant than or equal to 50%. The intermediate variables causing heterogeneity were found and determined by subgroup analysis. A statistically considerable level was set at p < 0.05.