Your browser doesn't support javascript.
loading
Effect of induced alkalosis on performance during a field-simulated BMX cycling competition.
Peinado, Ana B; Holgado, Darías; Luque-Casado, Antonio; Rojo-Tirado, Miguel A; Sanabria, Daniel; González, Coral; Mateo-March, Manuel; Sánchez-Muñoz, Cristóbal; Calderón, Francisco J; Zabala, Mikel.
Afiliación
  • Peinado AB; LFE Research Group, Department of Health and Human Performance, Universidad Politécnica de Madrid, Spain. Electronic address: anabelen.peinado@upm.es.
  • Holgado D; Faculty of Sport Sciences, University of Granada, Spain.
  • Luque-Casado A; Mind, Brain, and Behavior Research Center, University of Granada, Spain; Department of Experimental Psychology, University of Granada, Spain.
  • Rojo-Tirado MA; LFE Research Group, Department of Health and Human Performance, Universidad Politécnica de Madrid, Spain.
  • Sanabria D; Mind, Brain, and Behavior Research Center, University of Granada, Spain; Department of Experimental Psychology, University of Granada, Spain.
  • González C; Department of Methods of Research and Diagnosis in Education, Complutense University of Madrid, Spain.
  • Mateo-March M; University Miguel Hernández, Spain.
  • Sánchez-Muñoz C; Faculty of Sport Sciences, University of Granada, Spain.
  • Calderón FJ; LFE Research Group, Department of Health and Human Performance, Universidad Politécnica de Madrid, Spain.
  • Zabala M; Faculty of Sport Sciences, University of Granada, Spain.
J Sci Med Sport ; 22(3): 335-341, 2019 Mar.
Article en En | MEDLINE | ID: mdl-30170952
OBJECTIVES: The aim of the present study was to test the effect of sodium bicarbonate (NaHCO3-) ingestion on performance during a simulated competition on a Bicycle Motocross (BMX) track. DESIGN: Double-blind cross-over study. METHODS: Twelve elite male BMX cyclists (age: 19.2±3.4 years; height: 174.2±5.3cm; body mass: 72.4±8.4kg) ingested either NaHCO3- (0.3g.kg-1 body weight) or placebo 90min prior to exercise. The cyclists completed three races in a BMX Olympic track interspersed with 15min of recovery. Blood samples were collected to assess the blood acid-base status. Performance, cardiorespiratory, heart rate variability (HRV) as well as subjective variables were assessed. RESULTS: The main effect of condition (NaHCO3- vs. placebo) was observed in pH, bicarbonate concentration and base excess (p<0.05), with a significant blood alkalosis. No changes were found in time, peak velocity and time to peak velocity for condition (p>0.05). The HRV analysis showed a significant effect of NaHCO3- ingestion, expressed by the rMSSD30 (root mean square of the successive differences) (p<0.001). There was no effect of condition on oxygen uptake, carbon dioxide production, or pulmonary ventilation (p>0.05). Finally, there was no effect of condition for any subjective scale (p>0.05). CONCLUSIONS: We present here the first field condition study to investigate the effect of bicarbonate ingestion over performance in BMX discipline. The results showed that NaHCO3--induced alkalosis did not improve performance in a simulated BMX competition in elite BMX cyclists, although future studies should consider the effects of NaHCO3- on autonomic function as a component of recovery.
Asunto(s)
Palabras clave
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Ciclismo / Bicarbonato de Sodio / Alcalosis / Rendimiento Atlético Tipo de estudio: Clinical_trials Límite: Adolescent / Adult / Humans / Male Idioma: En Revista: J Sci Med Sport Asunto de la revista: MEDICINA ESPORTIVA Año: 2019 Tipo del documento: Article Pais de publicación: Australia
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Ciclismo / Bicarbonato de Sodio / Alcalosis / Rendimiento Atlético Tipo de estudio: Clinical_trials Límite: Adolescent / Adult / Humans / Male Idioma: En Revista: J Sci Med Sport Asunto de la revista: MEDICINA ESPORTIVA Año: 2019 Tipo del documento: Article Pais de publicación: Australia