Comparison of energy expenditure by the doubly labeled water technique with energy intake, heart rate, and activity recording in man

Journal Article · Thu Jun 01 00:00:00 EDT 1989 · Am. J. Clin. Nutr.; (United States)

OSTI ID:5878943

Schulz, S; Westerterp, K R; Brueck, K

Average daily energy expenditure determined by the doubly labeled water technique (dlwEE) was compared in six subjects (aged 20-30 y) over 2 wk under usual living conditions; average food energy intake and energy expenditure estimated from individual diary records of physical activity. In addition, energy expenditure was estimated from 24-h heart rate recordings carried out on two randomly chosen days of the 2-wk period. The group means of the dlwEE were 1.94 +/- 0.24 (means +/- SD) times larger than resting metabolic rate (= 1.94 met) and nearly identical to the average daily energy intake (1.93 +/- 0.23 met). Energy expenditure estimated from the diaries of activity and from the 24-h heart rate recording varied between 1.67 and 2.24 met depending on the calculation procedure. The dlwEE (1.94 +/- 0.24 met) is much higher than that recently determined for sedentary people (1.25 met) and thus explains that young students may achieve body weight balance with a relatively high daily food energy intake.

• Research Organization: Justus Liebig Univ., Giessen (Germany, F.R.)
• OSTI ID: 5878943
• Journal Information: Am. J. Clin. Nutr.; (United States), Vol. 49:6
• Country of Publication: United States
• Language: English

Related Subjects

59 BASIC BIOLOGICAL SCIENCES
MAN
METABOLISM
COMPARATIVE EVALUATIONS
DEUTERIUM
DOUBLE LABELLING
EXERCISE
FOOD
HEART
HEIGHT
INTAKE
OXYGEN ISOTOPES
TRACER TECHNIQUES
WATER
WEIGHT
ANIMALS
BODY
CARDIOVASCULAR SYSTEM
DIMENSIONS
HYDROGEN COMPOUNDS
HYDROGEN ISOTOPES
ISOTOPE APPLICATIONS
ISOTOPES
LABELLING
LIGHT NUCLEI
MAMMALS
NUCLEI
ODD-ODD NUCLEI
ORGANS
OXYGEN COMPOUNDS
PRIMATES
STABLE ISOTOPES
VERTEBRATES
550501* - Metabolism- Tracer Techniques