Longitudinal technical evolution in elite women's rotational shot put: A coach-oriented observational analysis of championship performances, 2019–2025

The rotational technique is increasingly used in elite women's shot put, yet its organization across championship attempts remains understudied. This retrospective serial observational study examined five world-class rotational shot putters across 18 major-championship finals from 2019 to 2025. Official results provided attempt order, distance, and foul status, while broadcasts were screened for positional, trajectory, and timing eligibility. Eligible footage was reviewed at six event frames, five movement trajectories, and five transition intervals using a prespecified coding framework. When at least two eligible legal attempts were available, a higher-distance attempt was compared with a lower-distance attempt from the same final, and patterns were tracked across championships. The dataset included 99 attempts (69 legal, 30 fouls). Athlete-specific functional direction into right-foot touchdown, a usable transition to block-foot landing, and coordinated center-to-release timing were more commonly observed in higher-distance attempts. These within-athlete associations are descriptive and may reflect trial-to-trial variability. Stance, free-arm action, touchdown location, and rhythm remained individualized, and serial change did not consistently coincide with improved performance. One qualified evaluator completed primary coding using fixed event definitions, verified metadata, and an audit trail. The senior author re-reviewed a stratified subset representing 34 of the 99 official attempts (34%) across all athletes and analytic domains. No discrepancy altered the direction of a reported comparison or theme. Because this was an internal quality-control audit within a shared framework, no formal inter-rater coefficient was calculated and external reproducibility is not claimed. The study provides a transparent coach-oriented method linking official outcomes with observations supported by championship video.