Effects of Chemical Protective Clothing and Masks, and Two Drinking Water Delivery Systems on Voluntary Dehydration
Abstract
The effects of MOPP IV configuration and the M17A1 face mask and two water delivery systems (CURRENT and FIST-FLEX type) on voluntary dehydration and fluid-electrolyte balance were evaluated. Fifteen male subjects walked on a treadmill set on a flat grade at a rate of 4.02 km/hr for 50 min of each hr for up to 6 hrs. The effects of the two water delivery systems on fluid balance and temperature regulation was assessed through measures of fluid intake, body weight changes, heart rate, rectal and skin temperatures, and plasma electrolytes. The experimental design also afforded the additional opportunity to evaluate the impact of MOPP configurations on fluid consumption and body weight loss. As anticipated, soldiers using either the CS or FF systems perceived more symptoms of hyperthermia and dehydration, and rated their final walk as being as hard to very hard, and more difficult than walk 1. The present study provided strong evidence of physiological and perceptional decrements when MOPP IV is worn during low intensity work in moderate climates. Keywords: Protective clothing; Mission oriented protective posture (MOPP); Chemical warfare.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 07, 1989
- Accession Number
- ADA208445
Entities
People
- Ingrid V. Sils
- Patricia C. Szlyk
- Ralph P. Francesconi
- Richard Foutch
- Roger W. Hubbard
Organizations
- United States Army Research Institute of Environmental Medicine