Document Detail

Pre-dive vibration effect on bubble formation after a 30-m dive requiring a decompression stop.
MedLine Citation:
PMID:  20027852     Owner:  NLM     Status:  MEDLINE    
INTRODUCTION: The preconditioning of divers to reduce post-dive decompression sickness (DCS) has gained increased interest in diving medical research over the last few years. The beneficial effects of physical exercise, oxygen breathing, hyperbaric exposure, heat exposure, hyperhydration, or nitroglycerin administration before the dive are only a few examples of ongoing research. In this work, we investigated the effects of pre-dive whole-body vibration on post-dive bubble formation. METHODS: Following French Navy standard dive procedures, 14 healthy male military divers performed 2 identical dives 1 wk apart to 30 m of seawater (msw) for 30 min. One of the dives was randomly preceded by a 30-min whole-body vibration session (frequencies 35-40 Hz) 1 h before the dive. Post-dive bubbles were measured precordially 30, 60, and 90 min after the dive and were graded according to the Kissman Integrated Severity Score (KISS) protocol, with and without knee flexing. Arterial endothelial function was measured before and after vibration using flow mediated dilation (FMD) measurement. RESULTS: A significant reduction in bubble scores was observed after the "vibration" dive. CONCLUSION: As there was no observed change in FMD after vibration, we do not believe a nitric oxide mediated mechanism is involved; rather, a mechanical dislodgement or enhanced lymphatic elimination of gas nuclei is hypothesized.
Peter Germonpr?; Jean-Michel Pontier; Emmanuel Gempp; Jean-Eric Blatteau; Stefaan Deneweth; Pierre Laf?re; Alessandro Marroni; Costantino Balestra
Publication Detail:
Type:  Journal Article; Randomized Controlled Trial    
Journal Detail:
Title:  Aviation, space, and environmental medicine     Volume:  80     ISSN:  0095-6562     ISO Abbreviation:  Aviat Space Environ Med     Publication Date:  2009 Dec 
Date Detail:
Created Date:  2009-12-23     Completed Date:  2010-03-04     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7501714     Medline TA:  Aviat Space Environ Med     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1044-8     Citation Subset:  IM; S    
Centre for Hyperbaric Oxygen Therapy, Military Hospital Brussels, Rue Bruyn, 1 B-1120 Brussels, Belgium.
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MeSH Terms
Decompression Sickness / prevention & control*
Diving / physiology*
Embolism, Air / prevention & control*
Vibration / therapeutic use*
Young Adult

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