Estimating energy needs in nutrition support patients

David Frankenfield, Christine M. Ashcraft

Research output: Contribution to journalArticle

52 Citations (Scopus)

Abstract

Determination of energy needs is a fundamental part of nutrition support. The amount of metabolically active tissue mass is the major determinant of metabolic rate. The other components of total energy requirement in an adult are physical activity, diet-induced thermogenesis, and illness hypermetabolism. Measurement with indirect calorimetry is possible but not common. Measurement can capture the effect of body size, diet-induced thermogenesis, and illness on metabolic rate but usually not the effect of physical activity. More often, the energy need is calculated based on its association with body weight and composition. Many equations have been proposed over the years, as have adjustments to body weight in an attempt to capture the distorting effect of body composition in obesity and emaciation. Some equations capture the effects of illness and diet-induced thermogenesis without the need for modification; some require multiplication with various factors. None predict the energy expenditure from physical activity. In determining the energy prescription, all of the component parts must be considered, regardless of whether energy expenditure is measured or calculated.

Original languageEnglish (US)
Pages (from-to)563-570
Number of pages8
JournalJournal of Parenteral and Enteral Nutrition
Volume35
Issue number5
DOIs
StatePublished - Sep 1 2011

Fingerprint

Thermogenesis
Exercise
Diet
Body Composition
Energy Metabolism
Body Weight
Emaciation
Indirect Calorimetry
Body Size
Prescriptions
Obesity

All Science Journal Classification (ASJC) codes

  • Medicine (miscellaneous)
  • Nutrition and Dietetics

Cite this

@article{8414cbe77899451b8ad2361fc38ee696,
title = "Estimating energy needs in nutrition support patients",
abstract = "Determination of energy needs is a fundamental part of nutrition support. The amount of metabolically active tissue mass is the major determinant of metabolic rate. The other components of total energy requirement in an adult are physical activity, diet-induced thermogenesis, and illness hypermetabolism. Measurement with indirect calorimetry is possible but not common. Measurement can capture the effect of body size, diet-induced thermogenesis, and illness on metabolic rate but usually not the effect of physical activity. More often, the energy need is calculated based on its association with body weight and composition. Many equations have been proposed over the years, as have adjustments to body weight in an attempt to capture the distorting effect of body composition in obesity and emaciation. Some equations capture the effects of illness and diet-induced thermogenesis without the need for modification; some require multiplication with various factors. None predict the energy expenditure from physical activity. In determining the energy prescription, all of the component parts must be considered, regardless of whether energy expenditure is measured or calculated.",
author = "David Frankenfield and Ashcraft, {Christine M.}",
year = "2011",
month = "9",
day = "1",
doi = "10.1177/0148607111415859",
language = "English (US)",
volume = "35",
pages = "563--570",
journal = "Journal of Parenteral and Enteral Nutrition",
issn = "0148-6071",
publisher = "SAGE Publications Inc.",
number = "5",

}

Estimating energy needs in nutrition support patients. / Frankenfield, David; Ashcraft, Christine M.

In: Journal of Parenteral and Enteral Nutrition, Vol. 35, No. 5, 01.09.2011, p. 563-570.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Estimating energy needs in nutrition support patients

AU - Frankenfield, David

AU - Ashcraft, Christine M.

PY - 2011/9/1

Y1 - 2011/9/1

N2 - Determination of energy needs is a fundamental part of nutrition support. The amount of metabolically active tissue mass is the major determinant of metabolic rate. The other components of total energy requirement in an adult are physical activity, diet-induced thermogenesis, and illness hypermetabolism. Measurement with indirect calorimetry is possible but not common. Measurement can capture the effect of body size, diet-induced thermogenesis, and illness on metabolic rate but usually not the effect of physical activity. More often, the energy need is calculated based on its association with body weight and composition. Many equations have been proposed over the years, as have adjustments to body weight in an attempt to capture the distorting effect of body composition in obesity and emaciation. Some equations capture the effects of illness and diet-induced thermogenesis without the need for modification; some require multiplication with various factors. None predict the energy expenditure from physical activity. In determining the energy prescription, all of the component parts must be considered, regardless of whether energy expenditure is measured or calculated.

AB - Determination of energy needs is a fundamental part of nutrition support. The amount of metabolically active tissue mass is the major determinant of metabolic rate. The other components of total energy requirement in an adult are physical activity, diet-induced thermogenesis, and illness hypermetabolism. Measurement with indirect calorimetry is possible but not common. Measurement can capture the effect of body size, diet-induced thermogenesis, and illness on metabolic rate but usually not the effect of physical activity. More often, the energy need is calculated based on its association with body weight and composition. Many equations have been proposed over the years, as have adjustments to body weight in an attempt to capture the distorting effect of body composition in obesity and emaciation. Some equations capture the effects of illness and diet-induced thermogenesis without the need for modification; some require multiplication with various factors. None predict the energy expenditure from physical activity. In determining the energy prescription, all of the component parts must be considered, regardless of whether energy expenditure is measured or calculated.

UR - http://www.scopus.com/inward/record.url?scp=80052359781&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=80052359781&partnerID=8YFLogxK

U2 - 10.1177/0148607111415859

DO - 10.1177/0148607111415859

M3 - Article

C2 - 21832143

AN - SCOPUS:80052359781

VL - 35

SP - 563

EP - 570

JO - Journal of Parenteral and Enteral Nutrition

JF - Journal of Parenteral and Enteral Nutrition

SN - 0148-6071

IS - 5

ER -