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Revisiting Ventilatory and Cardiovascular Predictions of Whole-Body Metabolic Rate.
- Source :
-
Journal of Occupational & Environmental Medicine . Feb2014, Vol. 56 Issue 2, p214-223. 10p. - Publication Year :
- 2014
-
Abstract
- Objective: The influence of variations in exercise mode, thermal state, and load carriage on cardiac and ventilatory predictors of metabolic rate were investigated. Methods: Fifteen males were studied at rest and during whole-, upper-, and lower-body exercise (unloaded and loaded) under thermoneutral and hot conditions. Results: Ventilatory predictions were superior in thermoneutral (residual mean square error range: 0.04 to 0.17 L•min vs 0.21 to 0.36 L•min) and hot conditions (0.03 to 0.07 L•min vs 0.21 to 0.24 L•min). Predictions derived from whole- or lower-body exercise, and unloaded or loaded exercise could be interchanged without significant error. Nevertheless, a mode-specific prediction was required for upper-body work, and mild hyperthermia significantly reduced the precision of cardiac predictions. Conclusion: Ventilatory predictions were more precise, but errors from heart-rate predictions could be minimized by using thermal-state and exercise mode-specific predictions. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10762752
- Volume :
- 56
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- Journal of Occupational & Environmental Medicine
- Publication Type :
- Academic Journal
- Accession number :
- 94412780
- Full Text :
- https://doi.org/10.1097/JOM.0000000000000086