title: Reliability and Validity of a New Specific Field Test of Aerobic Capacity with the Ball for Futsal Players.
abstract: The aim of this study was to establish the validity and reliability and verification of the reproducibility of the lactate minimum test (LM) to predict the maximal lactate steady state exercise intensity (MLSS) on a futsal-specific circuit (Futsal_circuit) which takes into consideration the technical movements performed. 16 male Brazilian futsal players (body mass: 67.7±8.3 kg; height: 1.73±0.05 m) were distributed randomly into 2 studies with 8 athletes in each (Study A - reproducibility; Study B - validity). First, aerobic capacity was determined by adapting the protocol of the LM to the futsal_circuit. In study A, the evaluation was repeated after 7 days (test e re-test) and, in study B, the MLSS on the futsal_circuit was performed. LM intensity (test=7.7±0.3 km.h-1; retest=7.7±0.4 km.h-1) showed a concordance (CV=4.13 and ET=0.32) on study A. No significant differences, high association (r=0.80; p<0.05) and concordance (lower limits: -0.58 km.h-1; Upper limits: 0.55 km.h-1) between LM and MLSS (7.5±0.5 km.h-1LM; 7.5±0.4 km.h-1MLSS) on study B. According to the results, we can conclude that the Futsal_circuit is reliable, reproducible and valid for assessing the functional aerobic capacity of futsal players.
authors.affiliation: Universidade Estadual Paulista (Unesp), Instituto de Biociências, Rio Claro - Department of Physical Education (GECIFEX - Outlier-LAB).
authors.forename: Ricardo
authors.initials: R
authors.lastname: Barbieri
authors.affiliation: Universidade Estadual Paulista (Unesp), Faculdade de Ciências, Bauru - Department of Physical (Education (Human Movement Research Laboratory - MOVI-LAB; Laboratory of Physiology and Human Performance - LAFIDE).
authors.forename: Fabio
authors.initials: F
authors.lastname: Barbieri
authors.affiliation: Universidade Estadual Paulista (Unesp), Instituto de Biociências, Rio Claro - Department of Physical Education (GECIFEX - Outlier-LAB).
authors.forename: Fabio
authors.initials: F
authors.lastname: Milioni
authors.affiliation: Universidade Estadual Paulista (Unesp), Faculdade de Ciências, Bauru - Department of Physical (Education (Human Movement Research Laboratory - MOVI-LAB; Laboratory of Physiology and Human Performance - LAFIDE).
authors.forename: Julio
authors.initials: J
authors.lastname: Dos-Santos
authors.affiliation: Universidade Estadual Paulista (Unesp), Instituto de Biociências, Rio Claro - Department of Physical Education (GECIFEX - Outlier-LAB).
authors.forename: Marcelo
authors.initials: M
authors.lastname: Soares
authors.affiliation: Universidade Estadual Paulista (Unesp), Faculdade de Ciências, Bauru - Department of Physical (Education (Human Movement Research Laboratory - MOVI-LAB; Laboratory of Physiology and Human Performance - LAFIDE).
authors.forename: Alessandro
authors.initials: A
authors.lastname: Zagatto
authors.affiliation: School of Physical Education and Sport of Ribeirão Preto, University of São Paulo - USP, Ribeirão Preto, Brazil (GECIFEX - Outlier-LAB).
authors.forename: Marcelo
authors.initials: M
authors.lastname: Papoti
mesh_terms: D000328:Adult; D005080:Exercise Test / Q000379:methods*; D017079:Exercise Tolerance; D006801:Humans; D019344:Lactic Acid / Q000097:blood*; D008297:Male; D010101:Oxygen Consumption; D015203:Reproducibility of Results; D055815:Young Adult
chemical_list: D019344:Lactic Acid