title: Improved reliability of the urine lactate concentration under controlled hydration after maximal exercise.
abstract: BACKGROUND
  Urine lactate may be a novel biomarker of lactate production capacity but its reliability has been unsatisfactory so far.
  
  
  OBJECTIVE
  To compare the reliability of urine lactate between controlled hydration and no hydration after maximal exercise.
  
  
  METHODS
  Athletes performed swimming exercise four times: two followed by consumption of 1 L of water and two followed by no water intake. Blood and urine lactate was measured.
  
  
  RESULTS
  The reliability of urine lactate was good and similar to that in blood only after controlled hydration. Blood and urine lactate were correlated under both hydration conditions.
  
  
  CONCLUSIONS
  Controlled hydration after exercise provides satisfactory reliability of urine lactate.
authors: a Department of Physical Education and Sport Science at Thessaloniki , Aristotle University of Thessaloniki , Thessaloniki , Greece.
authors: Stefanos
authors: S
authors: Nikolaidis
authors: a Department of Physical Education and Sport Science at Thessaloniki , Aristotle University of Thessaloniki , Thessaloniki , Greece.
authors: Ioannis
authors: I
authors: Kosmidis
authors: a Department of Physical Education and Sport Science at Thessaloniki , Aristotle University of Thessaloniki , Thessaloniki , Greece.
authors: Triantafullia
authors: T
authors: Koulidou
authors: a Department of Physical Education and Sport Science at Thessaloniki , Aristotle University of Thessaloniki , Thessaloniki , Greece.
authors: Sotiris
authors: S
authors: Panagakis
authors: b Department of Physical Education and Sport Science at Serres , Aristotle University of Thessaloniki , Thessaloniki , Greece.
authors: George
authors: G
authors: Tsalis
authors: a Department of Physical Education and Sport Science at Thessaloniki , Aristotle University of Thessaloniki , Thessaloniki , Greece.
authors: Dimitris
authors: D
authors: Loupos
authors: a Department of Physical Education and Sport Science at Thessaloniki , Aristotle University of Thessaloniki , Thessaloniki , Greece.
authors: Vassilis
authors: V
authors: Mougios
mesh_terms: D000328:Adult; D056352:Athletes; D015444:Exercise; D006801:Humans; D019344:Lactic Acid / Q000097:blood / Q000592:standards / Q000652:urine*; D000074267:Organism Hydration Status; D015203:Reproducibility of Results; D013550:Swimming; D014867:Water / Q000008:administration & dosage*; D055815:Young Adult
chemical_list: D014867:Water; D019344:Lactic Acid
keywords: Anaerobic lactic capacity; blood glucose; blood lactate; exercise metabolism; hydration; intraclass correlation coefficient; reliability; swimming; urine lactate