Long-term measurements of energy expenditure in humans using a respiration chamber - PubMed (original) (raw)
Long-term measurements of energy expenditure in humans using a respiration chamber
E Jéquier et al. Am J Clin Nutr. 1983 Dec.
Abstract
There is a need to measure energy expenditure in man for a period of 24 h or even several days. The respiration chamber offers a unique opportunity to reach this goal. It allows the study of energy and nutrient balance; from the latter, acute changes in body composition can be obtained. The respiration chamber built in Lausanne is an air-tight room (5 m long, 2.5 m wide, and 2.5 m high) which forms an open circuit ventilated indirect calorimeter. The physical activity of the subject inside the chamber is continuously measured using a radar system based on the Doppler effect. Energy expenditure of obese and lean women was continuously measured over 24 h and diet-induced thermogenesis was assessed by using an approach which allows one to subtract the energy expended for physical activity from the total energy expenditure. Expressed in absolute terms, total energy expenditure was more elevated in the obese than in the lean controls. Basal metabolic rate was also higher in the obese than in the controls, but diet-induced thermogenesis was found to be blunted in the obese. In a second study, the effect of changing the carbohydrate/lipid content of the diet on fuel utilization was assessed in young healthy subjects with the respiration chamber. After a 7-day adaptation to a high-carbohydrate low-fat diet, the fuel mixture oxidized matched the change in nutrient intake. A last example of the use of the respiration chamber is the thermogenic response and changes in body composition due to a 7-day overfeeding of carbohydrate. Diet-induced thermogenesis was found to be 27%; on the last day of overfeeding, carbohydrate balance was reached by oxidation of 50% of the carbohydrate intake, the remaining 50% being converted into lipid.
Similar articles
- Metabolic effects of a mixed and a high-carbohydrate low-fat diet in man, measured over 24 h in a respiration chamber.
Hurni M, Burnand B, Pittet P, Jequier E. Hurni M, et al. Br J Nutr. 1982 Jan;47(1):33-43. doi: 10.1079/bjn19820006. Br J Nutr. 1982. PMID: 7037049 - Twenty-four hour energy expenditure and substrate oxidation before and after 6 months' ad libitum intake of a diet rich in simple or complex carbohydrates or a habitual diet.
Vasilaras TH, Raben A, Astrup A. Vasilaras TH, et al. Int J Obes Relat Metab Disord. 2001 Jul;25(7):954-65. doi: 10.1038/sj.ijo.0801630. Int J Obes Relat Metab Disord. 2001. PMID: 11443492 - Thermogenic responses induced by nutrients in man: their importance in energy balance regulation.
Jequier E. Jequier E. Experientia Suppl. 1983;44:26-44. doi: 10.1007/978-3-0348-6540-1_3. Experientia Suppl. 1983. PMID: 6357848 Review. - The adjustment of energy expenditure and oxidation to energy intake: the role of carbohydrate and fat balance.
Schutz Y. Schutz Y. Int J Obes Relat Metab Disord. 1993 Dec;17 Suppl 3:S23-7; discussion S41-2. Int J Obes Relat Metab Disord. 1993. PMID: 8124396 Review. - Energy expenditure and postprandial thermogenesis in obese women before and after weight loss.
Bessard T, Schutz Y, Jéquier E. Bessard T, et al. Am J Clin Nutr. 1983 Nov;38(5):680-93. doi: 10.1093/ajcn/38.5.680. Am J Clin Nutr. 1983. PMID: 6637860
Cited by
- Adaptive Thermogenesis in Resistance to Obesity Therapies: Issues in Quantifying Thrifty Energy Expenditure Phenotypes in Humans.
Dulloo AG, Schutz Y. Dulloo AG, et al. Curr Obes Rep. 2015 Jun;4(2):230-40. doi: 10.1007/s13679-015-0156-9. Curr Obes Rep. 2015. PMID: 26627218 Review. - A cross-over experiment to investigate possible mechanisms for lower BMIs in people who habitually eat breakfast.
Reeves S, Huber JW, Halsey LG, Villegas-Montes M, Elgumati J, Smith T. Reeves S, et al. Eur J Clin Nutr. 2015 May;69(5):632-7. doi: 10.1038/ejcn.2014.269. Epub 2015 Jan 7. Eur J Clin Nutr. 2015. PMID: 25563734 - Exercise improves fat metabolism in muscle but does not increase 24-h fat oxidation.
Melanson EL, MacLean PS, Hill JO. Melanson EL, et al. Exerc Sport Sci Rev. 2009 Apr;37(2):93-101. doi: 10.1097/JES.0b013e31819c2f0b. Exerc Sport Sci Rev. 2009. PMID: 19305201 Free PMC article. - Posture and activity recognition and energy expenditure estimation in a wearable platform.
Sazonov E, Hegde N, Browning RC, Melanson EL, Sazonova NA. Sazonov E, et al. IEEE J Biomed Health Inform. 2015 Jul;19(4):1339-46. doi: 10.1109/JBHI.2015.2432454. Epub 2015 May 19. IEEE J Biomed Health Inform. 2015. PMID: 26011870 Free PMC article. - Estimating energy expenditure using heat flux measured at a single body site.
Lyden K, Swibas T, Catenacci V, Guo R, Szuminsky N, Melanson EL. Lyden K, et al. Med Sci Sports Exerc. 2014 Nov;46(11):2159-67. doi: 10.1249/MSS.0000000000000346. Med Sci Sports Exerc. 2014. PMID: 24811326 Free PMC article. Clinical Trial.
Publication types
MeSH terms
Substances
LinkOut - more resources
Medical