"Análise da intensidade de treinamentos específicos defutebol"

Abstract

The main purpose of the present study was to analyze the intensity of soccer specifictraining. The secondary purpose was to compare the intensity between some typesof training. Twenty two male professional soccer players (24,0 ± 3,0 years, 74,1 ± 7,5kg, 9,7 ± 2,4 % of fat; 63,9 ± 5,3 mLO2.kg-1.min-1) pertaining to a Brazilian soccerprofessional league were valuated. In the total, eight technical training, two tacticaltraining (tactical 1 and 2), three practice games, which were divided into practicegame 1 and 2, one friendly game, two reduced fields, which were divided into 1 and2, one circuit with ball and one attack versus defense, were analyzed. Beforemeasuring the intensity of these training sessions, the soccer players performed atest to determine the maximal oxygen uptake (VO2max), maximal heart rate (HRmax)and the heart rate (HR) corresponding to the blood lactate concentrations (BLC) of 2and 4mM. This test was also used to elaborate a linear regression equation betweenHR and oxygen uptake for each player. The intensity of these specific training wereestimated by measurement of the soccer players HR during the activities. Later on,the HR values were used to express the intensity in percentage of HRmax (%HRmax),percentage of VO2max (%VO2max), kilocalories per minute (kcal.min-1), number ofbasal metabolic rate (MET) and three intensity zones (easy, moderate and hardzones). The easy, moderate and hard zones corresponded, respectively, to the timethat the HR remained below those corresponding to the BLC of 2mM, between 2 and4mM and above of 4mM. The intensities of soccer specific training were: technicaltraining (7,2 ± 1,7 MET; 62,5 ± 5,3%HRmax); tactical 1 (9,1 ± 1,5 MET; 69,1 ± 4,4%HRmax) and tactical 2 (9,2 ± 1,8 MET; 69,6 ± 6,1%HRmax); practice game 1 (12,1 ±1,6 MET; 81,3 ± 4,1%HRmax), practice game 2 (11,1 ± 1,6 MET; 77,8 ± 4,9 %HRmax);friendly game (13,6 ± 1,5 MET; 85,8 ± 4,4%HRmax); reduced fields 1 (14,6 ± 2,1 MET;88,6 ± 3,3%HRmax), reduced fields 2 (5,8 ± 2,2 MET; 58,4 ± 5,5%HRmax); circuit withpresence of the ball (14,0 ± 1,4 MET; 87,3 ± 2,4 %HRmax) and attack versus defense(10,8 ± 1,5 MET; 75,2 ± 3,4 %HRmax). We concluded that the intensity of the soccerspecific training ranges from 5,8 ± 2,2 MET; 58,4 ± 5,5%HRmax to 14,6 ± 2,1 MET;88,6 ± 3,3%HRmax.