RT info:eu-repo/semantics/article T1 Age differences in selected measures of physical fitness in young handball players A1 Fernández Fernández, Jaime A1 Martínez Martín, Isidoro A1 García Tormo, José Vicente A1 García López, Juan A1 Centeno Esteban, Mario A1 Pereira, Lucas A. A1 Loturco, Irineu A2 Educacion Fisica y Deportiva K1 Educación Física K1 Psicología K1 Young handball players K1 Physical fitness AB [EN] Objective: The aims of the present study were: 1) to calculate the change of direction (COD) deficit (using a modified version of the 505 test and 10 m sprint time), and (2) to examine the differences in linear sprint, jump and COD performances, as well as COD deficit, between under-13 (U13) and under-15 (U15) male handball players. Methods: One hundred and nineteen young male handball players (under-13 [U13; n = 82] and under-15 [U15; n = 37]). Tests included anthropometric measurements, countermovement jump (CMJ), triple leg-hop for distance, linear sprint test (5, 10 and 20 m), and a modified version of the 505 COD test. Results: Results showed moderate to very large differences (P < 0.05) in age, predicted age at peak height velocity (APHV), distance from PHV (DPHV), height, and body mass between the age categories. Moreover, U15 players demonstrated higher performances in all jump tests and lower sprint times in 10- (ES = 0.84) and 20-m (ES = 0.51) and a higher 505 deficit (ES = 0.38) than the U13 players (P < 0.05). However, no significant differences were observed for the 505 COD test between groups (ES = 0.12; P > 0.05).Conclusions: Our results suggest that during the transition from pre- to post-puberty, young handball players should focus on transferring their progressive improvements in strength, speed, and power capacities to COD performance. PB Daniel Boullosa, Universidade Federal de Mato Grosso do Sul, BRAZIL LK https://hdl.handle.net/10612/18023 UL https://hdl.handle.net/10612/18023 NO Fernandez-Fernandez, J., Martinez-Martin, I., Garcia-Tormo, V., Garcia-Lopez, J., Centeno-Esteban, M., Pereira, L. A., & Loturco, I. (2020). Age differences in selected measures of physical fitness in young handball players. PLoS ONE, 15(11 November). https://doi.org/10.1371/JOURNAL.PONE.0242385 DS BULERIA. Repositorio Institucional de la Universidad de León RD 17-may-2024