Accession Number:

ADA234031

Title:

COLDEX-86: Summary of the Experimental Protocol and General Results

Descriptive Note:

Technical rept. May-Sep 1986

Corporate Author:

NAVAL MEDICAL RESEARCH INST BETHESDA MD

Report Date:

1990-12-01

Pagination or Media Count:

28.0

Abstract:

Aspects of temperature regulation, exercise capacity, and passive rewarming were evaluated during planned 6 h immersions in 5 deg C 41 deg F water. A total of 16 divers 12 First Class divers, 4 SEALs performed 63 manned immersions. Each diver wore a full face mask modified AGA mask and breathed compressed air at 6.1 msw 20 fsw. A butyl-nylon dry suit with M-600 Thinsulate thermal protection undergarments was worn. Hands were protected with a M-200 Thinsulate glove worn beneath a water tight latex glove a neoprene outer gauntlet mitt was worn over the latex glove. The divers completed two 5 day air saturation dives at 6.1 msw, with a week separating dives. Each diver made two immersions during the dives, with 54 hours between immersions. One immersion began at 1000 hours AM dive and the other at 2200 hours PM dive. The order of presentation of AM and PM dives was varied among the subjects. During one saturation dive the divers were fed a high carbohydrate diet, while during the second dive the drivers were fed a standard American mixed diet. Both diets provided 3000 kcal per day. Urine and venous blood samples were obtained before and after each immersion. Urine was also collected during the immersion. Body temperatures, regional heat fluxes, oxygen consumption, and EKG recordings were obtained throughout the immersion.

Subject Categories:

  • Personnel Management and Labor Relations
  • Marine Engineering

Distribution Statement:

APPROVED FOR PUBLIC RELEASE