title: Relationship between Aerobic Capacity and Yo-Yo IR1 Performance in Brazilian Professional Futsal Players.
abstract: OBJECTIVE
  To evaluate the relationship between aerobic and intermittent capacities in a team of professional futsal players.
  
  
  METHODS
  FIFTEEN FUTSAL PLAYERS FROM BRAZILIAN FIRST DIVISION (AGE: 25.9±5.1 yrs; height: 1.77±0.04 m, body mass: 74.37±6.02 kg) performed in random order a ramp test and the Yo-Yo intermittent recovery test level 1 (Yo-Yo IR1) at the start of the season for determination of maximum oxygen consumption (VO2max), peak running speed (Speak), and intermittent running ability.
  
  
  RESULTS
  Mean VO2max was of 57.25±6.35 ml·kg(-1)min(-1) with a Speak of 17.69±1.88 km·h(-1). Yo-Yo IR1 performance was of 1,226±282 m. There was no correlation between VO2max and Yo-Yo performance while Speak and Yo-Yo IR1 performance were correlated (r=0.641; P=0.007).
  
  
  CONCLUSIONS
  From the current results, it may be suggested that both continuous and intermittent physical evaluations are necessary for obtaining a complete fitness profile of futsal players. The low Yo-Yo IR1 performance of Brazilian futsal players when compared to other elite team sport athletes warrants further investigation.
authors.affiliation: Departamento de Educação Física, Universidade Estadual de Londrina, Londrina, Brazil.
authors.forename: Daniel A
authors.initials: DA
authors.lastname: Boullosa
authors.affiliation: Pós-Graduação Stricto Sensu em Educação Física, Universidade Católica de Brasília, Brasília, Brazil.
authors.forename: Lais
authors.initials: L
authors.lastname: Tonello
authors.affiliation: Pós-Graduação Stricto Sensu em Educação Física, Universidade Católica de Brasília, Brasília, Brazil.
authors.forename: Isabela
authors.initials: I
authors.lastname: Ramos
authors.affiliation: Pós-Graduação Stricto Sensu em Educação Física, Universidade Católica de Brasília, Brasília, Brazil.
authors.forename: Alessandro de Oliveira
authors.initials: Ade O
authors.lastname: Silva
authors.affiliation: Pós-Graduação Stricto Sensu em Educação Física, Universidade Católica de Brasília, Brasília, Brazil.
authors.forename: Herbert G
authors.initials: HG
authors.lastname: Simoes
authors.affiliation: Pós-Graduação Stricto Sensu em Educação Física, Universidade Católica de Brasília, Brasília, Brazil.
authors.forename: Fabio Y
authors.initials: FY
authors.lastname: Nakamura
keywords: Anaerobic Capacity; High-Intensity Actions; Monitoring; Performance; Team Sports