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GAZZETTA MEDICA ITALIANA ARCHIVIO PER LE SCIENZE MEDICHE

A Journal on Internal Medicine and Pharmacology


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Gazzetta Medica Italiana Archivio per le Scienze Mediche 2017 January-February;176(1-2):1-9

DOI: 10.23736/S0393-3660.16.03316-7

Copyright © 2016 EDIZIONI MINERVA MEDICA

language: English

Evaluation of the accuracy of a previously published equation to predict energy expenditure per unit distance following an exercise intervention in previously sedentary overweight adults

Cody E. MORRIS 1, John C. GARNER 2, Scott G. OWENS 2, Melinda W. VALLIANT 3, Mark LOFTIN 2

1 School of Kinesiology, Recreation and Sport, Western Kentucky University, Bowling Green, KY, USA; 2 Department of Health, Exercise Science and Recreation Management, The University of Mississippi, University, MS, USA; 3 Department of Nutrition and Hospitality Management, The University of Mississippi, University, MS, USA


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BACKGROUND: Loftin et al. suggested that when comparing the energy expenditure per mile of overweight walkers, normal weight walkers, and marathon runners, groups were not significantly different. Results showed that as body mass increased, energy expenditure per mile increased but was not significantly different if the mile was walked or run. The purpose of this study was to compare energy expenditure for walking and running for pre- and post- exercise intervention aimed at eliciting a modest weight loss as well as to compare the measured EE values to the predicted EE values derived from the Loftin et al. equation.
METHODS: Fourteen overweight, but otherwise healthy participants (9 female, 5 male) completed the study. Body composition (measured via dual-energy x-ray absorptiometry), preferred walk/run pace, measured and predicted energy expenditure per mile walked/run, and excess post-exercise oxygen consumption following the walk/run were measured pre- and post-intervention.
RESULTS: A within-subjects repeated-measures ANOVA showed that measured walk energy expenditure at both baseline and post-exercise one-mile walk was not significantly different from predicted energy expenditure using the Loftin et al. equation (P>0.05). However, measured run energy expenditure was significantly different from predicted energy expenditure as well as from measured walk energy expenditure (P<0.05).
CONCLUSIONS: The current study supports the Loftin et al. equation in its ability to accurately predict walking energy expenditure, but suggests a re-evaluation is necessary as it pertains to running energy expenditure.


KEY WORDS: Walking - Overweight - Motor activity

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Publication History

Issue published online: November 21, 2016
Manuscript accepted: July 14, 2016
Manuscript received: December 31, 2015

Cite this article as

Morris CE, Garner JC, Owens SG, Valliant MW, Loftin M. Evaluation of the accuracy of a previously published equation to predict energy expenditure per unit distance following an exercise intervention in previously sedentary overweight adults. Gazz Med Ital - Arch Sci Med 2017;176:1-9. DOI: 10.23736/S0393-3660.16.03316-7

Corresponding author e-mail

cody.morris@wku.edu