Voluntary Consumption of a Liquid Carbohydrate Supplement by Special Operations Forces during a High Altitude Cold Weather Field Training Exercise
Abstract
A six day field test was conducted to measure the energy expenditures, activity levels and nutrient intakes of unsupported soldiers consuming the Ration, Lightweight (RLW) with a liquid carbohydrate (CHO) supplement during a strenuous field training exercise at high altitude. Ten soldiers (+or-SD; age 32+or5yrs, wt 81.2+or-9.7 kg, and body fat 18.9+or-8.3%) were required to consume the RLW and a liquid CHO supplement exclusively for six days. Body comparison measurements (anthropometry and hydrostatic weighing), activity levels (ambulatory monitors), food and water intakes (log book technique), and ration acceptability (post study questionnaire) were recorded. Mean caloric intake for the six day study was 2467+or- 384 kcal/day (12% protein, 34% fat and 54% CHO). Mean energy expenditure using the intake/balance method was 4294+or-1276 kcal/day. Body weight loss averaged 1.7+or-7 kg with 35 percent from fat free mass and 65 percent from fat mass. Total fluid intake was 3.6 L/day. Carbohydrate intakes from the RLW and CHO supplement were 229+or- 55(916 kcal/day) and 103+or-44 g/day (412 kcal/day), respectively.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1990
- Accession Number
- ADA241769
Entities
People
- C. B. Hintlian
- C. J. Baker
- P. S. Walczak
- R. W. Hoyt
- T. E. Jones
Organizations
- United States Army Research Institute of Environmental Medicine