[abstract] DIVING EXPERIENCE AND ANTHROPOMETRY ASSOCIATED WITH OUT-OF-AIR, BUOYANCY TROUBLE, AND RAPID ASCENT.

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[abstract] DIVING EXPERIENCE AND ANTHROPOMETRY ASSOCIATED WITH OUT-OF-AIR, BUOYANCY TROUBLE, AND RAPID ASCENT.

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Title: [abstract] DIVING EXPERIENCE AND ANTHROPOMETRY ASSOCIATED WITH OUT-OF-AIR, BUOYANCY TROUBLE, AND RAPID ASCENT.
Author: Buzzacott, P; Denoble, PJ; Vann, RD
Abstract: INTRODUCTION: DAN’s Project Dive Exploration (PDE) collects data regarding demographics, diving experience, recorded depth-time profiles, and reported problems. We report human factors associated with out-of-air, buoyancy trouble, and rapid ascent (>60 fsw/min). METHODS: From 1991-2004, PDE collected 56,205 dives by 5,374 divers. Rates of ascent to the surface were calculated from recorded profiles. Human factors were tested by logistic regression (p<0.05) for association with out-of-air, buoyancy trouble, and rapid ascent. RESULTS: Running out of air was reported by 72 divers (0.014%), buoyancy trouble by 266 divers (0.053%), and rapid ascent by 251 divers (0.050%). Recorded dive profiles indicated 215 divers (0.043%) made at least one rapid ascent, 39 of which (18%) were self-reported. Out-of-air was significantly associated with older divers (p<0.01), female gender (p<0.01), and lower certification (p=0.03). Buoyancy trouble was associated with female gender (p<0.01), number of reported medical conditions (p=0.01), and a low number of dives during the last five years (p=0.04). Rapid ascent was associated with younger divers (p<0.01) and higher certification (p<0.01). A recorded ascent faster than 60 fsw/min for at least 20 fsw was associated with younger divers (p<0.01) and higher certification (p=0.01). DISCUSSION: Rapid ascent was reported much less often than recorded, but recorded rapid ascent was rare. Out-of-air, buoyancy trouble, and rapid ascent were associated with gender, experience, and certification level.
Description: Abstract of the Undersea & Hyperbaric Medical Society 2008 Annual Scientific Meeting June 26-28, 2008 Salt Lake City Marriott Downtown, Salt Lake City, Utah.
URI: http://archive.rubicon-foundation.org/7807
Date: 2008

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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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