Effects of AI-assisted physical education on students' psychological states: a systematic review and meta-analysis (retrospective registration)
RETROSPECTIVE REGISTRATION: all review stages (search, screening, extraction, meta-analysis, GRADE) were completed between 2026-10-04 and 2026-10-06, before this registration, and the authors have seen the results. This record documents the completed methods and all deviations from the original protocol (PROTOCOL.md, 2...