Perfil de limiares ventilatórios durante o exercício e o consumo de oxigênio de pico verificado em jogadoras de futebol
Palavras-chave:
Limiares Ventilatórios, Consumo de Oxigênio, Jogadores de Futebol, Medicina EsportivaResumo
Foram avaliadas trinta e sete jogadoras de futebol, com média de idade de 21,5 ± 5,9 anos, peso de 57,0 ± 8,3 kg, estatura de 161 ± 7 cm e índice de massa corpórea de 21,8 ± 2,1 kg/m2. Todas as atletas foram submetidas à avaliação espirométrica e metabólica, por meio de um sistema computadorizado de análise de gases expirados da marca SensorMedics, modelo Vmax 29C. A resposta cardiovascular foi verificada por meio de um eletrocardiógrafo computadorizado da marca HeartWare, modelo 6.4. A capacidade física máxima foi avaliada através de teste realizado em esteira rolante da marca Inbramed, modelo ATL-10.100, utilizando-se protocolo escalonado contínuo. Os seguintes parâmetros fisiológicos e os resultados encontrados foram: no Limiar Ventilatório Um (LV1): VO2 = 30,5 ± 3,7 mlO2.kg-1.min-1; % VO2 = 64 ± 7%; velocidade de corrida = 8,1 ± 0,3 km.h-1; FC = 154 ± 9 bpm. No Limiar Ventilatório Dois (LV2): VO2 = 40,9 ± 4,5 mlO2.kg-1.min-1; % VO2 = 85,7 ± 4,9 %; velocidade de corrida = 11,4 ± 1,1 km.h-1; FC = 179 ± 7 bpm. O VO2 de pico foi de 47,4 ± 4,1 mlO2.kg-1.min-1. Concluindo, a verificação de limiares ventilatórios e a potência aeróbia em jogadoras de futebol são parâmetros fisiológicos de grande importância, pois permitem ampliar suas aplicações práticas, qualificando, controlando e desenvolvendo de modo mais adequado e objetivo o treinamento físico dessas atletas.
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