Differences in Soccer Matches' Movement Patterns between Two Young Age Groups Players: Under-17 and Under-19

One of the most important issues in soccer training is the analysis and optimization of the players’ physiological characteristics. This study examines movement characteristics of soccer players in an under-17 (U17, n=20) and under-19 (U19, n=23) age groups. Participants played for over 80 minutes in 13 league matches. Using GPS devices, we measured movement patterns, including total distance (TD), with speeds being classified into five categories: (1) walking, 0–3.6 km/h; (2) jogging, 3.6–10.8 km/h; (3) moderate running, 10.8–18.0 km/h; (4) fast running, 18.0–25.0 km/h; and (5) sprinting, >25.0 km/h. High-speed running (HSR) included speed categories 4 and 5. Maximum sprint speed (Max Speed) and the number of accelerations (ACC) and decelerations (DEC) were also recorded. Statistical analysis included independent T-test samples and ANOVA and showed higher measurements in the distance covered in four of the five categories (1, 2, 4, and 5), as well as increased TD, HSR and Max Speed, and higher ACC and DEC among the U19 players compared to the U17 players. These findings emphasize the need for age-specific fitness characteristics training strategies in young soccer players particularly during the transition of age group categories.