The midpoint between ventilatory thresholds approaches maximal lactate steady state intensity in amateur cyclists

Peinado Lozano, Ana Belen; Pessoa Filho, D. M.; Diaz Molina, Victor; Benito Peinado, Pedro José; Alvarez-Sánchez, M.; Zapico, A. G. y Calderon Montero, Francisco Javier (2016). The midpoint between ventilatory thresholds approaches maximal lactate steady state intensity in amateur cyclists. "Biology of Sport", v. 33 (n. 4); pp. 373-380. ISSN 0860-021X. https://doi.org/10.5604/20831862.1221812.

Descripción

Título: The midpoint between ventilatory thresholds approaches maximal lactate steady state intensity in amateur cyclists
Autor/es:
  • Peinado Lozano, Ana Belen
  • Pessoa Filho, D. M.
  • Diaz Molina, Victor
  • Benito Peinado, Pedro José
  • Alvarez-Sánchez, M.
  • Zapico, A. G.
  • Calderon Montero, Francisco Javier
Tipo de Documento: Artículo
Título de Revista/Publicación: Biology of Sport
Fecha: 2016
Volumen: 33
Materias:
Palabras Clave Informales: Lactic acidosis, respiratory physiology,exercise test, workload
Escuela: Facultad de Ciencias de la Actividad Física y del Deporte (INEF) (UPM)
Departamento: Salud y Rendimiento Humano
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

The aim was to determine whether the midpoint between ventilatory thresholds (MPVT) corresponds to maximal lactate steady state (MLSS). Twelve amateur cyclists (21.0 ± 2.6 years old; 72.2 ± 9.0 kg; 179.8 ± 7.5 cm) performed an incremental test (25 W·min-1) until exhaustion and several constant load tests of 30 minutes to determine MLSS, on different occasions. Using MLSS determination as the reference method, the agreement with five other parameters (MPVT; first and second ventilatory thresholds: VT1 and VT2; respiratory exchange ratio equal to 1: RER = 1.00; and Maximum) was analysed by the Bland-Altman method. The difference between workload at MLSS and VT1, VT2, RER=1.00 and Maximum was 31.1 ± 20.0, -86.0 ± 18.3, -63.6 ± 26.3 and -192.3 ± 48.6 W, respectively. MLSS was underestimated from VT1 and overestimated from VT2, RER = 1.00 and Maximum. The smallest difference (-27.5 ± 15.1 W) between workload at MLSS and MPVT was in better agreement than other analysed parameters of intensity in cycling. The main finding is that MPVT approached the workload at MLSS in amateur cyclists, and can be used to estimate maximal steady state.

Más información

ID de Registro: 45793
Identificador DC: http://oa.upm.es/45793/
Identificador OAI: oai:oa.upm.es:45793
Identificador DOI: 10.5604/20831862.1221812
URL Oficial: https://www.termedia.pl/Journal/Biology_of_Sport-78/Numer-4-2016
Depositado por: Memoria Investigacion
Depositado el: 04 Jul 2017 10:25
Ultima Modificación: 04 Jul 2017 10:25
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