Efeito do percurso sobre a frequência cardíaca de um ciclista altamente treinado
DOI:
https://doi.org/10.33233/rbfe.v7i1.3604Abstract
O objetivo deste estudo foi descrever a intensidade do exercício de acordo com o percurso no ciclismo mountain-bike. Um atleta de destaque, 21 anos, consumo máximo de oxigênio de 75,42 ml/kg/min, frequência cardíaca (FC) máxima de 200 bpm, e posicionado entre os 5 melhores do ranking nacional teve uma sessão de treinamento monitorada. O atleta foi avaliado em laboratório para determinação do consumo máximo de oxigênio, FC máxima e limiar anaeróbico. A sessão teve duração de 251 minutos, FC média de 164 batimentos por minuto, correspondente a 82% da FC máxima em laboratório. A maior FC ocorreu no início do treino. O atleta sustentou 9 minutos (4% do tempo total) de exercício em intensidade superior a 90% da FC máxima (esforço anaeróbico). A intensidade entre 80% e 90% da FC máxima, de esforço intenso, foi suportada durante 178 minutos (71% do tempo total do treino). Intensidades abaixo ou muito próximas de 80% da FC máxima totalizaram 63 minutos (25% do tempo da corrida). Estes resultados comprovam a alta intensidade do exercício adotada no treinamento do ciclista mountain-bike, sendo que o atleta avaliado foi capaz de sustentar altas intensidades durante um tempo superior í quelas observadas em provas de ciclismo profissional de estrada.
Palavras-chave: treinamento, mountain bike, fisiologia do exercício, desempenho humano, ciclo ergômetro.
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