Heart rate response during a simulated Olympic boxing match is predominantly above ventilatory threshold 2: a cross sectional study. - Barbosa de Lira, Claudio Andre; Peixinho-Pena, Luiz Fernando; Vancini, Rodrigo Luiz; de Freitas Guina Fachina, Rafael Júlio; de Almeida, Alexandre Aparecido; dos Santos Andrade, Marília; da Silva, Antonio Carlos (Open Access Journal of Sports Medicine, 2013)