title: A technique for determination of usual daily energy expenditure in the field.
mesh_terms: D000740:Anemia / Q000503:physiopathology; D002648:Child; D004562:Electrocardiography; D005069:Evaluation Studies as Topic; D005740:Gases / Q000032:analysis; D006339:Heart Rate / Q000295:instrumentation; D006801:Humans; D008297:Male; D008433:Mathematics; D008660:Metabolism; D008722:Methods; D009747:Nutritional Physiological Phenomena; D010100:Oxygen / Q000032:analysis; D010101:Oxygen Consumption / Q000295:instrumentation; D005082:Physical Exertion; D012119:Respiration; D013223:Statistics as Topic; D013997:Time Factors
chemical_list: D005740:Gases; D010100:Oxygen