Factors Influencing Energy Balance: Estimation Methods
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The human organism is a chemical machine in that it is only able to use chemical bond energy obtained from the oxidation of energy substrates supplied by food and converted for the performance of all the vital functions. It is very important for an individual to know his daily energy requirements because this constitutes the starting point for the creation of an optimal diet. We must distinguish between calorie intake, consisting of what is introduced daily with food intake, energy expenditure related to all the voluntary and involuntary activities carried out by the individual, and finally his energy requirements which are closely related to expenditure. An individual’s energy expenditure depends on three factors: basal metabolism, dietary-induced thermogenesis and physical activity. Quantifying energy expenditure is the starting point for determining energy requirements. Consequently, nutrition is a mathematical equation, if intake exceeds expenditure the body gradually gains weight, on the contrary, if intake is lower the body loses weight. A healthy body should maintain a desirable weight over time in order to maintain all its vital functions as long as possible.
KeywordsCatabolism reactions Anabolic reactions Human energy requirements Energy expenditure Basal metabolism Dietary-induced thermogenesis Physical activity Estimation methods Optimal body mass
- Bouillanne, O., Morineau, G., Dupont, C., Coulombel, I., Vincent, J.-P., Nicolis, I., et al. (2005). Geriatric Nutritional Risk Index: a new index for evaluating at-risk elderly medical patients. American Journal of Clinical Nutrition, 82, 777–783.Google Scholar
- Collins, L. C., Cornelius, M. F., Vogel, R. L., Walker, J. F., & Stamford, B. A. (1994). Effect of caffeine and/or cigarette smoking on resting energy expenditure. International Journal of Obesity and Related Metabolic Disorders, 18(8), 551–556.Google Scholar
- Commission of the European Communities (1993). Nutrient and energy intakes for the European Community, Reports of the Scientific Committee for food, thirty first series. Resource document. http://ec.europa.eu/food/fs/sc/scf/out89.pdf. Accessed June 2015.
- Cunningham, J. J. (1980). A reanalysis of the factors influencing basal metabolic rate in normal adults. American Journal of Clinical Nutrition, 33(11), 2372–2374.Google Scholar
- Cunningham, J. J. (1990). Calculation of energy expenditure from indirect calorimetry: Assessment of the Weir equation. Nutrition, 6(3), 222–223.Google Scholar
- Cunninghum, J. J. (1991). Body composition as a determinant of energy expenditure: A synthetic review and a proposed general prediction equation. American Journal of Clinical Nutrition, 4(6), 963–969.Google Scholar
- Devine, B. J. (1974). Gentamicin therapy. Drug Intelligence and Clinical Pharmacy, 8, 650–655.Google Scholar
- FAO (2004), Human Energy Requirements: Report of a joint FAO/WHO/UNU expert consultation. Resource document. http://www.fao.org/docrep/007/y5686e/y5686e00.htm. Accessed June 2015.
- FAO, & United Nation University. (1985). Protein and amino acid requirements in human nutrition. WHO Technical Report Series n. 724. Resource document. http://whqlibdoc.who.int/trs/who_trs_935_eng.pdf. Accessed June 2015.
- Ferro-Luzzi, A., D’Amicis, A., Scaccini, C., Sette, S., & Arena, A. (1988). Energy expenditure in old age. International Meeting on Nutrition in Old Age. Roma, 21–22 July.Google Scholar
- Food and Nutrition Board/Institute of Medicine. (2002). Dietary reference intakes for energy, carbohydrate, fiber, fatty, fatty acids, cholesterol, protein and amino acids. Institute of Medicine of the National Academies, Washington: National Academy Press.Google Scholar
- Garrow, J. S. (1978). Energy balance and obesity in man (2nd ed.). Amsterdam: Elsevier/North Holland Biomedical Press.Google Scholar
- Hamwi, G. J. (1964). Changing dietary concepts. In T. S. Danowski (Ed.), Diabetes mellitus: diagnosis and treatment (pp. 73–78). New York: ADA.Google Scholar
- Institute of Medicine-IOM (2005). Dietary reference intakes for energy, carbohydrate, fiber, fat, fatty acids, cholesterol, protein, and amino acids. Resource document. http://www.nal.usda.gov/fnic/DRI/DRI_Energy/energy_full_report.pdf Accessed June 2015.
- Ismail, M. N., Ng, K. K., Chee, S. S., Roslee, R., & Zawiah, H. (1998). Predictive equations for the estimation of basal metabolic rate in Malaysian adults. Malaysian Journal of Nutrition, 4, 81–90.Google Scholar
- LARN (1996). Livelli di assunzione raccomandati di energia e nutrienti per la popolazione ita-liana. Resource document. http://www.sinu.it/documenti/20121016_LARN_bologna_sintesi_prefinale.pdf. Accessed June 2015.
- Mifflin, M. D., St Jeor, S. T., Hill, L. A., Scott, B. J., Daugherty, S. A., & Koh, Y. O. (1990). A new predictive equation for resting energy expenditure in healthy individuals. The American journal of clinical nutrition, 51(2), 241–247.Google Scholar
- Miller, D. R., Miller, D. R., Carlson, J. D., Loyd, B. J., & Day, B. J. (1983). Determining ideal body weight (and mass). American Journal of Hospital Pharmacy, 40(10), 1622–1625.Google Scholar
- Quetelet, A. (1832). Nouveaux Memoire de l’Academie Royale des Sciences et Belles-Lettres de Bruxelles. Bruxelles: M. Hayez, Imprimeur De L’Académie Royale.Google Scholar
- Robinson, J. D., Lupkiewicz, S. M., Palenik, L., Lopez, L. M., & Ariet, M. (1983). Determination of ideal body weight for drug dosage calculations. American Journal of Hospital Pharmacy, 40(6), 1016–1019.Google Scholar
- Roza, A. M., & Shizgal, H. M. (1984). The Harris Benedict equation reevaluated: Resting energy requirements and the body cell mass. American Journal of Clinical Nutrition, 40(1), 168–182.Google Scholar
- Santoprete, G. (1995). La situazione alimentare alle soglie del Terzo Millennio. Un confronto tra fabbisogni e disponibilità per le popolazioni del globo. Pisa: Edizioni ETS.Google Scholar
- Schofield, P. C. N., Schofield, C., & James, W. P. T. (1985). Basal metabolic rate: Review and prediction. Human Nutrition Clinical Nutrition, 39(Suppl 1), 1–96.Google Scholar
- Schofield, W. N. (1985). Predicting basal metabolic rate, new standards and review of previous work. Human Nutrition Clinical Nutrition, 39(Suppl 1), 5–41.Google Scholar
- Seale, J. L. (1995). Energy expenditure measurements in relation to energy requirements. American Journal of Clinical Nutrition, 62(5), 1042S–1046S.Google Scholar
- WHO (1995). Physical status: the use and interpretation of anthropometry. Technical Report Series n. 854. Resource document. http://whqlibdoc.who.int/trs/WHO_TRS_854.pdf?ua=1. Accessed June 2015.