Plasma Renin Activity and Aldosterone: Correlations with Moderate Hypohydration
Abstract
Adult male test subjects were assigned to one of three clothing configurations (Army fatigues, fatigues with impermeable chemical protective garments, and fatigues with protective garments plus protective masks) prior to exercise in a moderate environment with ad lib water consumption. When protective masks were worn, two through-mask drinking systems were evaluated: the current gravity-fed system for fluid delivery and a new system utilizing a small hydraulic pump (Fist-Flex). Antecubital blood samples were taken prior to the start of and subsequent to the completion of exercise and analyzed for fluid-electrolyte regulatory hormones. During all trials with chemical protective garments, plasma renin activity (PRA) and aldosterone levels (PA) were significantly elevated following the exercise protocol while neither was affected during exercise in fatigues only. Individual hypohydration levels during all trials ranged from low to moderate (4.04%). Keywords: Reprints, Plasma renin, Alposterone, Hypohydration, Dehydration, Protective garments.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1989
- Accession Number
- ADA219085
Entities
People
- I. V. Sils
- N. Leva
- P. C. Szlyk
- R. P. Francesconi
- R. W. Hubbard
Organizations
- United States Army Research Institute of Environmental Medicine