Pelarigo, Jailton GregórioGreco, Camila Coelho [UNESP]Denadai, Benedito Sérgio [UNESP]Fernandes, Ricardo JorgeVilas-Boas, João PauloPendergast, David Robert2018-12-112018-12-112016-10-01Human Movement Science, v. 49, p. 258-266.1872-76460167-9457http://hdl.handle.net/11449/178213Our purpose was to examine the swimming biophysical responses at velocities (v) of 97.5, 100 and 102.5% of the maximal lactate steady state (MLSS). Ten elite female swimmers performed three-to-five 30-min constant tests at imposed paces to determine 97.5, 100 and 102.5%MLSS v. Gas exchange, blood lactate concentration ([La-]), stroke rate (SR) and v were determined during each test. The v values at 97.5, 100 and 102.5%MLSS were 1.21 ± 0.07, 1.24 ± 0.07 and 1.27 ± 0.07 m.s−1, respectively. Oxygen uptake (V̇O2) and Pulmonary ventilation (V̇E) increased as function of v. SR and stroke length (v/SR = SL) increased as a function of v. All measured variables were constant as a function of time at 97.5%MLSS and 100%MLSS. At 102.5%MLSS SR increased (3.5%) and stroke length (SL) decreased (3.5%) as a function of time. While V̇O2 was constant at 102.5%MLSS, [La-] and V̇E increased as a function of time, suggesting hyperventilation, at v's of 97.5%MLSS and 100%MLSS swimmers completed the 30 min swim in spite of decreased SL and increased SR. However, the decrease in SL and increased SF were accompanied by increased [La-] and V̇E and resulted in the inability of most swimmers to complete the 30 min swim presumably due to fatigue at 102.5%MLSS.258-266engAerobic capacityBiomechanical parametersGas exchangeOxygen uptakeOxygen uptake efficiencyArtigo10.1016/j.humov.2016.07.009Acesso aberto2-s2.0-849829948652-s2.0-84982994865.pdf