title: Blood lactate changes in professional Indian divers under hyperbaric conditions.
abstract: BACKGROUND
  Hyperoxia due to hyperbaric conditions influences lactate metabolism. Previous studies on lactate levels in hyperbaric conditions have reported varied results depending on the depth of evaluation and breathing gas mixture used.
  
  
  METHODS
  This study compared post-exercise blood lactate levels of Indian professional male divers (breathing ambient air under normobaric conditions) with their post-exercise blood lactate levels measured under simulated hyperbaric conditions.
  
  
  RESULTS
  In the present study, blood lactate levels in divers were found to have decreased significantly during recovery phase of exercise in hyperbaric conditions of dry diving at 2.8 Atmospheres Absolute (ATA) as compared to normobaric conditions. A significant improvement was observed in physical performance in terms of HR max and duration of exercise.
  
  
  CONCLUSIONS
  This study revealed that hyperoxia due to moderate hyperbaric condition leads to improvement in lactate metabolism in muscles and organs (liver and heart) for its removal.
authors.affiliation: Associate Professor, Dept of Physiology, Armed Forces Medical College, Pune 411040, India.
authors.forename: Gaurav
authors.initials: G
authors.lastname: Sikri
authors.affiliation: Professor, Dept of Physiology, Armed Forces Medical College, Pune 411040, India.
authors.forename: S P
authors.initials: SP
authors.lastname: Singh
authors.affiliation: Research Pool Officer, HAMRC, C/O 153 GH, C/O 56 APO, India.
authors.forename: A B
authors.initials: AB
authors.lastname: Srinivasa
authors.affiliation: Classified Specialist (Marine Medicine), INS Satavahana, Naval Base, Visakhapatnam 530014, India.
authors.forename: H B S
authors.initials: HB
authors.lastname: Chaudhry
keywords: Graded exercise; Hyperbaric conditions; Lactate; Recovery phase