Resumen de Effects of Combined Strength and Resisted Sprint Training on Physical Performance in U-19 Elite Soccer Players
Mehdi Ben Brahim, Rim Bougatfa, Emna Makni, Pablo Prieto González, Hussain Yasin, Raghad Tarwneh, Wassim Moalla, Mohamed Elloumi
This study assessed the effects of combined muscular strength and resisted sprint training using both sled and weight vest compared with regular soccer training on physical fitness of lower limbs in U-19 elite soccer players. Thirty-four male soccer players (age: 18.8 +/- 0.8 years, height: 1.81 +/- 0.05 m, body mass: 76.4 +/- 4.9 kg, and body fat mass: 11.3 +/- 4.2%) were randomly assigned into a resisted sprint training group (RSTG, n = 20), using both weight vest and sled, and a control group (CONTG, n = 14). Sprinting ability (5 m and 20 m), squat jump (SJ) and counter-movement jump (CMJ) tests, 1 repetition maximum of half-back squat (1RM half-back squat), and soccer ball-shooting speed were assessed before and after a 6-week training program. Within-group interactions showed significant combined muscular strength and resisted sprint training effects were observed for all the tests' measurements (effect sizes = 0.97 and 3.69 for 20-m sprint and SJ, respectively). However, significant increases of performances were observed for 5-m and 20-m sprinting time ( = 0.25, p < 0.01 and
