Describes the importance of estimating energy requirements and therelationship between energy expenditure and requirements. To estimatehabitual expenditure, and hence requirements, it is necessary to makemeasurements over long enough periods to take account of daily variationin expenditure e.g weekday versus weekend and the methodology adoptedshould not require that the subjects leave their normal environment oralter their typical activity pattern. Discusses traditional methods ofmeasuring energy expenditure together with their limitations. Outlinesthe advantages of the doubly labelled water method for estimatinghabitual energy expenditure and describes the theoretical basis of themethod. However, to estimate requirements as described by recentDepartment of Health and FAOWHOUNU reports requires the application ofboth the doubly labelled water method and traditional methodologies.Also discusses the usefulness of simultaneous heart rate monitoring.
Nutrition & Food Science – Emerald Publishing
Published: May 1, 1992