Validity of perceived recovery status (PRS) as a marker of recovery in judokas male during intermittent fasting Ramadan

This study evaluated the validity of the Perceived Recovery Status (PRS) scale as a subjective recovery marker and compared it with objective neuromuscular indicators—Squat Jump (SJ) and Countermovement Jump (CMJ)—in 20 national-level male judokas across four weeks of Ramadan. Measurements were taken twice weekly (Sunday and Thursday). Analyses included correlations, test–retest reliability (ICC), and sensitivity (repeated-measures ANOVA). Results showed weak and inconsistent correlations between PRS and SJ/CMJ, while PRS exhibited good-to-excellent reliability (ICC ≈ 0.69–0.90). SJ and CMJ were strongly correlated with each other and remained stable. We conclude that PRS is a practical and reliable day-to-day monitoring tool, but its interpretation during fasting should be contextual and ideally combined with objective performance tests. Methods snapshot (for description): 20 senior male judokas were monitored over four Ramadan weeks; PRS (0–10), SJ, and CMJ were collected twice weekly following a fixed protocol (Sunday morning after rest; Thursday after 5×4-min randori). Data were analyzed in SPSS (v26) using Pearson/Spearman correlations, ICC, Cronbach’s alpha, and repeated-measures ANOVA.