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NAASO 2007 Abstract 1

Published on: Mar 3, 2016
Published in: Health & Medicine      Technology      
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Transcripts - NAASO 2007 Abstract 1

  • 1. How Well Do The Mifflin-St. Jeor And De Luis Equations Predict Resting Energy Expen... Page 1 of 1 Print this Abstract How Well Do The Mifflin-St. Jeor And De Luis Equations Predict Resting Energy Expenditure In Class III Obese Individuals? ROBERT LOWE, JENNIFER PATZKOWSKY The measurement of resting energy expenditure (REE) is useful in prescribing nutrition and exercise therapy for obese individuals. However, many clinicians do not have access to the technology necessary to measure REE. The Mifflin-St Jeor equation (MSJ; 1990) is widely accepted as a clinical tool to predict REE in healthy individuals. Recently a REE prediction equation (de Luis; 2006) has been developed from Class I obese adults. However, as clinicians begin to treat increasing numbers of Obesity Class II and III individuals it is of critical importance to be able to accurately predict REE in the absence of indirect calorimetry. PURPOSE: To determine if the MSJ and de Luis equations accurately predict REE (REEP) in a group of Class III obese adults when compared to hand-held indirect calorimetry (REEM). METHODS: HT, WT, and waist circumference (WC) were measured in a group of Class III obese adults (N= 40; 46.9±9.7 yrs; BMI=41±10.6). Subjects were instructed to avoid vigorous exercise and refrain from using tobacco, caffeine, or other stimulants for 24 hours prior to measurement. Following an overnight fast, REEM was measured by indirect calorimetry using a hand-held device (Nieman, 2003) in a seated position following 10 minutes of rest. The MSJ equations (REEP (males) = 10 x weight (kg) + 6.25 x height (cm) - 5 x age (y) + 5; REEP (females) = 10 x weight (kg) + 6.25 x height (cm) - 5 x age (y) - 161) and de Luis equations (REEP (males) = 58.6 + (6.1 x weight (kg)) + (1,023.7 x height (m)) - (9.5 x age); REEP (females) = 1,272.5 + (9.8 x weight (kg)) - (61.6 x height (m)) - (8.2 x age) were used to generate REEP for each subject. Comparisons between REEM and REEP were explored by t-test; Pearson correlation was utilized to describe relationships among the selected variables. RESULTS: Both the MJS REEP (1768±379 kcal/day) and de Luis REEP (1890±310 kcal/day) were correlated with REEM (r = 0.868, p < 0.01; r = 0.874, p < 0.01, respectively). However, only MSJ REEP was significantly different from REEM (1768±379 kcal/day vs. 1854±447 kcal/day; t(39)= 2.431, p = 0.02). CONCLUSIONS: These results suggest that the de Luis REEP equation may be more useful to predict REE in Class III obese individuals. http://www.softconference.com/naaso/abstract.asp?SID=98784 10/12/2008

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