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Influence of Ingestion of Bicarbonate-Rich Water Combined with an Alkalizing or Acidizing Diet on Acid-Base Balance and Anaerobic Performance.
Chiron, François; Thomas, Claire; Bardin, Joffrey; Mullie, Florence; Bennett, Samuel; Chéradame, Jérémy; Caliz, Laurine; Hanon, Christine; Tiollier, Eve.
Afiliación
  • Chiron F; LBEPS, Univ Evry, IRBA, Université de Paris-Saclay, Evry, France.
  • Thomas C; French Federation of Athletics (FFA), Paris, France.
  • Bardin J; LBEPS, Univ Evry, IRBA, Université de Paris-Saclay, Evry, France.
  • Mullie F; Laboratory of Sport, Expertise and Performance (SEP), French National Institute of Sport (INSEP), Paris, France.
  • Bennett S; Laboratory of Sport, Expertise and Performance (SEP), French National Institute of Sport (INSEP), Paris, France.
  • Chéradame J; French Federation of Rugby (FFR), Marcoussis, France.
  • Caliz L; Research Institute for Sport and Exercise Science (RISES), Liverpool John Moores University, Liverpool, United Kingdom.
  • Hanon C; French Federation of Rugby (FFR), Marcoussis, France.
  • Tiollier E; Laboratory of Sport, Expertise and Performance (SEP), French National Institute of Sport (INSEP), Paris, France.
J Hum Kinet ; 93: 105-117, 2024 Jul.
Article en En | MEDLINE | ID: mdl-39132426
ABSTRACT
During high-intensity (HI) exercise, metabolic acidosis significantly impairs exercise performance. Increasing the body's buffering capacity through training and exogenous intake of alkalizing supplements may improve high-intensity performance. Manipulating water and diet intake may influence the acid-base balance. The aim of this study was to determine the effects of mineral water rich in bicarbonate ions (STY) or placebo water (PLA) on circulating biomarkers and anaerobic performance and to verify whether alkalizing (ALK) or acidizing (ACI) diet would modulate these effects. Twenty-four athletes, assigned either to ALK (n = 12) or ACI (n = 12) diet for four weeks, completed a 1-min rowing Wingate Test in a double-blind and randomized trial after one week of daily hydration (1.5 to 2L/d) with either STY or PLA. Blood samples were taken before and after each test, and urine samples were collected each week. Chronic consumption of bicarbonate-rich water significantly impacted resting urinary pH irrespective of alkalizing or acidizing dietary intake. STY induced a significant increase in blood pH, lactate, and HCO3 - ion concentration post-exercise compared to PLA. Similar changes were observed when STY was associated with the ALK diet. In contrast, STY combined with the ACI diet only significantly affected urine pH and peak blood lactate compared to PLA (p < 0.05). No effect of bicarbonate-rich water was reported on anaerobic performance (p > 0.05). Our results suggest that consumption of bicarbonate-rich water alters acid-base balance during a warm-up and after HI exercise, could potentiate beneficial effects of an alkalizing diet on the acid-base balance after HI exercise, and reduces the acid load induced by an acidifying diet.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Hum Kinet Año: 2024 Tipo del documento: Article País de afiliación: Francia Pais de publicación: Polonia
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Hum Kinet Año: 2024 Tipo del documento: Article País de afiliación: Francia Pais de publicación: Polonia