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Determining the Contribution of the Energy Systems During Exercise
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Determining the Contribution of the Energy Systems During Exercise

Published on: March 20, 2012

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Physical activity is directly associated with total energy expenditure without evidence of constraint or compensation

Kristen R Howard1,2,3,4, Olalla Prado-Nóvoa3,5, Guillermo Zorrilla-Revilla6,7

  • 1Graduate Program in Translational Biology, Medicine, and Health, Virginia Tech, Blacksburg, VA 24061.

Proceedings of the National Academy of Sciences of the United States of America
|October 21, 2025
PubMed

Keywords:
compensationconstraintdoubly-labelled waterenergy expenditurephysical activity

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