Accession Number:

ADA247774

Title:

Loss of Body Fluid after Open-Water Dives Conducted at Night in Warm Water

Descriptive Note:

Technical rept. Mar-Apr 1991

Corporate Author:

NAVAL MEDICAL RESEARCH INST BETHESDA MD

Personal Author(s):

• Doubt, T. J.

Report Date:

1992-02-01

Pagination or Media Count:

26.0

Abstract:

Changes in body weight were recorded in 9 divers after nighttime dives in 26 degC 78 degF water lasting 2-5 hours. A total of 34 manned dives were made during March-April 1991 as part of operator training for a SEAL delivery Vehicle SDV. Loss of body fluid was estimated directly from changes in body weight 1 liter fluid per kg body weight. Dive duration averaged 195 - 10 min. The average loss of body weight, from pre- to post-dive, was 1.31 - 0.12 kg. This translated to an estimated loss of body fluid of 1315 - 115 ml, or an hourly rate of loss of 440 - 44 ml per hour of dive.

Descriptors:

• *DIVING
• *DEHYDRATION
• *DIURESIS
• DELIVERY
• TRAINING
• WATER
• RATES
• WEIGHT
• FLUIDS
• BODY FLUIDS
• HYDRATION
• BODY WEIGHT
• HEART RATE
• BODIES
• DIVERS
• IMMERSION
• MANNED
• HEART

Subject Categories:

• Biology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE