title: [Effects of the metabolic alkalosis induced by the diet in the high intensity anaerobic performance].
abstract: OBJECTIVE
  The purpose of this study is to compare the effects of two diets, one acidifier and the other alkalizer, on the sport performance in an extreme anaerobic stress test.
  
  
  METHODS
  For that purpose thirteen individuals were subjected to two such diets in a crossed test for two and a half days. Immediately after, they were tested in a maximum lactic anaerobic stress test of stable state to exhaustion on an ergo-cycle at 250 W.
  
  
  RESULTS
  The assessment of the diets yielded a significant difference in the estimated NAE (net acid excretion) and a caloric deficit of 54% on the alkalizer diet, mainly due to a reduced ingestion of carbohydrates. The urinary pH increased by 83% for the individuals subjected to the alkalizer diet, 77% of those subjects experienced an increase in their blood lactate level during the test. The time to exhaustion while on the test improved or remained in 58% of the subjects, being the females who reacted best to the diet in 83% of the cases.
  
  
  CONCLUSIONS
  There seems to be evidence of improvement in extreme anaerobic stress test to exhaustion from 60 s to 2 mins of duration after consuming a diet with alkalizer potential.
authors.affiliation: Departamento de Nutrición y Bromatología, Facultad de Farmacia, Universidad de Granada, Granada, Spain.
authors.forename: O
authors.initials: O
authors.lastname: Ríos Enríquez
authors.forename: E
authors.initials: E
authors.lastname: Guerra-Hernández
authors.forename: B
authors.initials: B
authors.lastname: Feriche Fernández-Castanys
mesh_terms: D000140:Acidosis, Lactic / Q000378:metabolism; D000471:Alkalosis / Q000378:metabolism*; D000693:Anaerobiosis; D054874:Athletic Performance / Q000502:physiology*; D004032:Diet; D004040:Dietary Carbohydrates / Q000494:pharmacology; D005080:Exercise Test; D005260:Female; D006801:Humans; D006863:Hydrogen-Ion Concentration; D008297:Male; D012727:Sex Characteristics; D055815:Young Adult
chemical_list: D004040:Dietary Carbohydrates