Figure 5. Violin plots of the Yo-Yo Intermittent Recovery Test – level 1 (YYIRT), at baseline, and at 3- and 6-month follow-ups for each cohort. lbHPT: later-born players who played above the median playing time per player per team; lbLPTcomp: later-born players who played below the median playing time per player per team and received compensatory training; lbLPTreg later-born players who played below the median playing time per player per team and did not receive compensatory training.