Gaurav Sikri1, S P Singh2, A B Srinivasa3, H B S Chaudhry4. 1. Associate Professor, Dept of Physiology, Armed Forces Medical College, Pune 411040, India. 2. Professor, Dept of Physiology, Armed Forces Medical College, Pune 411040, India. 3. Research Pool Officer, HAMRC, C/O 153 GH, C/O 56 APO, India. 4. Classified Specialist (Marine Medicine), INS Satavahana, Naval Base, Visakhapatnam 530014, India.
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. RESULT: 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. CONCLUSION: 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.
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. RESULT: 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. CONCLUSION: 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: B Neubauer; K Tetzlaff; C Buslaps; J Schwarzkopf; E Bettinghausen; H Rieckert Journal: Int Arch Occup Environ Health Date: 1999-05 Impact factor: 3.015