Soccer training consists of high intensity bursts of exercise interspersed with low to moderate levels of activity, leading to sweat losses that may result to dehydration. It is well documented that dehydration can significantly impair performance. Aim: This study aimed to investigate the effects of pre-hydration on muscular power after intense soccer training on adolescent soccer players. Materials and methods: 16 adolescent soccer players (age: 17.5±1.5y, body mass: 71.1±9.3 Kg, body fat: 7.1±3.1%), participated in this study. Subjects were tested for Squat jump (SJ), counter movement jump (CMJ) and 10sec continuous jumps (CJ) after two 70 minutes simulated training sessions .Trainings were performed one we ek apart and consisted of interval running and 4-a-side game (25-28oC, 60-65% humidity). Water consumption was individually the same in both sessions. Subjects were instructed not to consume any liquids 2 hours prior the first experimental session. Pre-hydration (500ml-1 hour and 250ml of water 15min before training) was performed before the second session. Results: Analysis of the results (paired samples t-test) showed that pre-hydration resulted to increased CMJ and CJ (4% and 9% respectively), however there was no statistically significant improvement in none of the three measured parameters (psj =0.83, p cmj =0,056, p cj =0,067). Conclusion: Our findings suggest that hydration prior to intense soccer training does not alter muscular power. However the observed increase in CMJ and SJ could affect the outcome of competitions when small differences separate winning from loosing
© Copyright 2008 Archivos de medicina del deporte. Federación Española de Medicina del Deporte. All rights reserved.