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Intensity of real competitive soccer matches and differences among player positions / Intensidade de jogos de futebol de uma competição real e entre jogadores de diferentes posições táticas

Coelho, Daniel Barbosa; Mortimer, Lucas Ávila; Condessa, Luciano Antonacci; Morandi, Rodrigo Figueiredo; Oliveira, Bernardo Moreira; Marins, João Carlos Bouzas; Soares, Danusa Dias; Garcia, Emerson Silami.
Rev. bras. cineantropom. desempenho hum ; 13(5): 341-347, set.-out. 2011. graf, tab
Artículo en Inglés | LILACS | ID: lil-599897
Most investigations on soccer match intensity have evaluated friendly, simulated or a small number of games on a recreational basis or including a small number of players. There are no studies investigating real competitive situations including a considerable number of athletes and games or differences among player positions using heart rate as an intensity parameter. The aim of this study was to determine Brazilian soccer game intensity (GI) during official competitive matches and to compare GI among different player positions. Heart rate (HR) was measured in 26 under-17 (U-17) and 18 under-20 (U-20) soccer players (age 16.38 ± 0.5 and 18.24 ± 0.66 years, respectively) during 14 and 15 official games, respectively. Individual maximal heart rate (HRmax) and anaerobic threshold (AT) HR were evaluated in field tests. GI defined as percentHRmax was monitored considering five intensity zones ranging from 1 = < 70 percent HRmax to 5 = 95-100 percent HRmax. Mean GI and AT intensity were 84.4 ± 5.1 and 86.3 ± 4.0 percent HRmax for the U-17 category and 84.1 ± 4.1 and 87.0 ± 5.1 percent HRmax for the U-20 category, respectively. Wingbacks (WB) spent more time in zone 5 than forwards (FW) (p<0.05). Midfielders (MF) spent more time in zone 3 than all other players and in zone 4 than defenders and FW (p<0.05). Mean GI and AT intensity were similar. WB performed more maximum effort than FW. MF did not participate as much in maximum effort as did WB and FW.
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