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Indexed/Abstracted in: Chemical Abstracts, CINAHL, Current Contents/Clinical Medicine, EMBASE, PubMed/MEDLINE, Science Citation Index Expanded (SciSearch), Scopus
Impact Factor 1,111
Online ISSN 1827-1928
Rodrigo L. AQUINO 1, 2, Luiz G. GONCALVES 2, Luiz H. VIEIRA 2, Lucas P. OLIVEIRA 2, Guilherme F. ALVES 2, Paulo R. SANTIAGO 3, Enrico F. PUGGINA 3
1 Faculty of Sports Science, Porto University, Porto, Porugal; 2 Faculty of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil; 3 School of Physical Education and Sport of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
BACKGROUND: The objectives of this study were to describe and compare the displacement patterns and the tactical performance of the players in the first to the second game time and verify possible associations between indirect markers of muscle damage with displacement patterns in a 30 simulated game played by young soccer players.
METHODS: 18 young soccer players were submitted to a simulated game and two blood collections, one before and another 30 min postgame to analyze the behavior of creatine kinase and lactate dehydrogenase enzymes. The patterns of displacement and tactics variables were obtained through functions developed in Matlab environment (MathWorks, Inc., USA).
RESULTS: It is observed a significant increase in average 35 speed (p = 0.05), number of sprints (p < 0.001), the percentage the total distance covered at high intensity (p <0.001) and tactical variables (team surface area p = 0.002; spreading p = 0.001) in the second period of the simulated game. In addition, there was significant reduction in the percentage of the total distance at low intensity (p ≤ 0.05) in the second period, and there was a strong association between the percentage of change delta of creatine kinase and lactate 40 dehydrogenase with the displacement patterns in the simulated game.
CONCLUSION: The results show that indirect markers of muscle damage have great association with displacement patterns in game performed in training conditions for young soccer players, evidencing a need for reflection on the posttraining recovery sessions strategies, contributing to better planning of sessions throughout the macrocycle.