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Estimating the Energy Costs of Intermittent Exercise

To date, steady state models represent the only acceptable methodology for the estimation of exercise energy costs. Conversely, comparisons made between continuous and intermittent exercise generally reveal major physiological discrepancies, leading to speculation as to why steady state energy expen...

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Detalles Bibliográficos
Autores principales: Scott, Christopher B., Fountaine, Charles
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Akademia Wychowania Fizycznego w Katowicach 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3827766/
https://www.ncbi.nlm.nih.gov/pubmed/24235988
http://dx.doi.org/10.2478/hukin-2013-0050
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author Scott, Christopher B.
Fountaine, Charles
author_facet Scott, Christopher B.
Fountaine, Charles
author_sort Scott, Christopher B.
collection PubMed
description To date, steady state models represent the only acceptable methodology for the estimation of exercise energy costs. Conversely, comparisons made between continuous and intermittent exercise generally reveal major physiological discrepancies, leading to speculation as to why steady state energy expenditure models should be applied to intermittent exercise. Under intermittent conditions, skeletal muscle invokes varying aerobic and anaerobic metabolic responses, each with the potential to make significant contributions to overall energy costs. We hypothesize that if the aerobic-only energetic profile of steady state exercise can be used to estimate the energetics of non-steady state and intermittent exercise, then the converse also must be true. In fact, reasonable estimates of energy costs to work volumes or work rates can be demonstrated under steady state, non-steady state and intermittent conditions; the problem with the latter two is metabolic variability. Using resistance training as a model, estimates of both aerobic and anaerobic energy cost components, as opposed to one or the other, have reduced the overall energetic variability that appears inherent to brief, intense, intermittent exercise models.
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spelling pubmed-38277662013-11-14 Estimating the Energy Costs of Intermittent Exercise Scott, Christopher B. Fountaine, Charles J Hum Kinet Research Article To date, steady state models represent the only acceptable methodology for the estimation of exercise energy costs. Conversely, comparisons made between continuous and intermittent exercise generally reveal major physiological discrepancies, leading to speculation as to why steady state energy expenditure models should be applied to intermittent exercise. Under intermittent conditions, skeletal muscle invokes varying aerobic and anaerobic metabolic responses, each with the potential to make significant contributions to overall energy costs. We hypothesize that if the aerobic-only energetic profile of steady state exercise can be used to estimate the energetics of non-steady state and intermittent exercise, then the converse also must be true. In fact, reasonable estimates of energy costs to work volumes or work rates can be demonstrated under steady state, non-steady state and intermittent conditions; the problem with the latter two is metabolic variability. Using resistance training as a model, estimates of both aerobic and anaerobic energy cost components, as opposed to one or the other, have reduced the overall energetic variability that appears inherent to brief, intense, intermittent exercise models. Akademia Wychowania Fizycznego w Katowicach 2013-10-08 /pmc/articles/PMC3827766/ /pubmed/24235988 http://dx.doi.org/10.2478/hukin-2013-0050 Text en © Editorial Committee of Journal of Human Kinetics This article is an open-access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
spellingShingle Research Article
Scott, Christopher B.
Fountaine, Charles
Estimating the Energy Costs of Intermittent Exercise
title Estimating the Energy Costs of Intermittent Exercise
title_full Estimating the Energy Costs of Intermittent Exercise
title_fullStr Estimating the Energy Costs of Intermittent Exercise
title_full_unstemmed Estimating the Energy Costs of Intermittent Exercise
title_short Estimating the Energy Costs of Intermittent Exercise
title_sort estimating the energy costs of intermittent exercise
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3827766/
https://www.ncbi.nlm.nih.gov/pubmed/24235988
http://dx.doi.org/10.2478/hukin-2013-0050
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