[abstract] WORKING CAPACITY AND CHANGES OF BLOOD VARIABLES DURING EXERCISE TESTS BEFORE AND AFTER HYPERBARIC OXYGENATION.

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[abstract] WORKING CAPACITY AND CHANGES OF BLOOD VARIABLES DURING EXERCISE TESTS BEFORE AND AFTER HYPERBARIC OXYGENATION.

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Title: [abstract] WORKING CAPACITY AND CHANGES OF BLOOD VARIABLES DURING EXERCISE TESTS BEFORE AND AFTER HYPERBARIC OXYGENATION.
Author: Hoffmann, G; Bohmer, D; Ambrus, C; Zimmer, P
Abstract: The aim of the study was to investigate, whether hyperbaric oxygenation influences the regeneration after workload concerning working capacity and blood variables during an additional workload. For this purpose in 32 senior cyclists with a minimum age of 40 years and a minimum performance of 5000 km per year three exercise tests (ergometries A, B and C) were performed: first maximal power was investigated by a stepwise increasing exhausting speed independent bicycle ergometry (A) in sitting position during a complete sports medical examination. At a later day of investigation ergometry B was executed with 70 % of maximal power till exhaustion; immediately afterwards a randomized (single blind study) hyperbaric treatment with 1.5 ATA of pure oxygen (hyperbaric oxygenation HBO) or pressurized normal air, respectively, was performed in a multiplace chamber, using face masks; after the hyperbaric treatment an additional ergometry (C) was executed with 70 % of maximal power. Before and after the three ergometries of each cyclist an intravenous blood sample and a sample of arterialized capillary blood of the hyperemized ear lobe (for lactate and blood gas analysis) were taken. Arterialized capillary blood was sampled also every 10 minutes during the hyperbaric treatment. No difference between HBO and treatment with pressurized air was detected conceming duration of ergometry C (as sign of working capacity): in both groups duration of ergometry C -as second exhausting exercise test within a few hours -was shorter than duration of ergometry B. The missing difference may be caused by the increased oxygen supply even under pressurized air compared with no treatment at all. Under HBO the oxygen partial pressure in blood gas analysis increased remarkably higher than under pressurized air. During ergometries Band C the changes of blood variables were mostly smaller than during ergometry A, although ergometry B lasted much longer than ergometry A.
Description: Abstract of the Undersea and Hyperbaric Medical Society, Inc. Joint Annual Scientific Meeting with the International Congress for Hyperbaric Medicine and the European Undersea Biomedical Society held 11-18 August 1990. Okura Hotel, Amsterdam, The Netherlands (http://www.uhms.org)
URI: http://archive.rubicon-foundation.org/7052
Date: 1990

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  • UHMS Meeting Abstracts
    This is a collection of the published abstracts from the Undersea and Hyperbaric Medical Society (UHMS) annual meetings.

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