Submerged Manned Testing of the Prototype Hydrotech Aqua Heat System

Abstract

Eight U.S. Navy divers were submerged in 7.2 C (45 degrees F) water for a maximum of two hours in three different conditions: no heating while wearing a semidry suit, heated in a semidry suit, and heated in a 7mm wet suit. A total of 35 W was delivered to each heating pad. Statistical analysis demonstrated that providing heating to the divers afforded no benefits in reducing the effects of cold water exposure on the skin temperature of the body extremities (fingers and toes) or in enhancing manual dexterity, grip strength, or cognitive performance when the effects of such heating were compared to those of the unheated condition. However, the participants reported that they would rather dive with the heating system than without it.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 2006
Accession Number
ADA456821

Entities

People

  • Dale Hyde
  • Demetri Economos
  • Paul E. O'connor
  • Rene Beck

Organizations

  • United States Navy Experimental Diving Unit

Tags

Communities of Interest

  • Biomedical
  • Human Systems

DTIC Thesaurus Topics

  • Abstracts
  • Analysis Of Variance
  • Classification
  • Cold Water
  • Data Science
  • Divers
  • Diving
  • Fingers
  • Fluids
  • Information Science
  • Power Supplies
  • Security
  • Statistical Analysis
  • United States
  • United States Special Operations Command
  • Water
  • Wet Suits

Readers

  • Brain and Cognitive Science; Experimental Psychology; Cognitive Neuroscience
  • Materials Science
  • Thermal Physics or Thermal Science.