ABSTRACT
Accurate assessment of energy requirements of humans under various physiological, pathological, and environmental conditions is hampered by the high cost of techniques for measuring daily energy expenditure. A room respirometer novel in its novel in its low cost of construction and simplicity of operation is described, together with an appreciation of errors and assumptions. It is suitable for measurements of daily energy expenditure in humans with an accuracy of +/- 1.5% and can be reproduced without difficulty in both developed and developing countries.
Subject(s)
Energy Metabolism , Environment, Controlled , Monitoring, Physiologic/instrumentation , Adult , Calorimetry, Indirect/instrumentation , Humans , Mathematics , Monitoring, Physiologic/economics , RespirationABSTRACT
An electronic interface for a Research Machines 380Z microcomputer and a Vickers M85/6 integrating microdensitometer is described, together with outlines of the control software. A typical applications programme, which may be written in several high-level languages, is outlined for the determination of a time course plot for enzyme activity in a tissue section. This system facilitates rapid accurate measurement and analysis of experimental data.
