Reliability of Respiratory Thresholds and Relation to Fat Oxidation: The Reliability of Respiratory Thresholds and Their Relation to Fat Oxidation in Untrained Young Adults

Tschentscher, Marcus, Ring-Dimitriou, Susanne

ISBN 10: 3639321944 / ISBN 13: 9783639321944

Published by VDM Verlag Dr. M ller, 2010

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Bibliographic Details

• Title: Reliability of Respiratory Thresholds and Relation to Fat Oxidation: The Reliability of Respiratory Thresholds and Their Relation to Fat Oxidation in Untrained Young Adults
• Publisher: VDM Verlag Dr. M ller
• Publication Date: 2010
• Language: English
• ISBN 10: 3639321944
• ISBN 13: 9783639321944
• Binding: paperback
• Condition: Like New
• Book Type: book

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Synopsis

As there is a lack of investigating the relationship between respiratory thresholds (ventilatory threshold (VT), anaerobic threshold (AT) and respiratory compensation point (RCP)) and fat oxidation, this study aimed to determine: 1) the reliability of the different respiratory thresholds as VT, AT and RCP, and 2) the percentage of fat oxidation at VT, AT and RCP in untrained young subjects. Fifty two sedentary subjects volunteered in a ramp test-retest protocol with 1 minute increments to detect VO2peak on a treadmill until complete exhaustion. The way of measurement and calculation method indicated a very high correlation. Based on the results, RER and fat oxidation showed the dependence of fat metabolism to physical workload and amount of the respiratory thresholds. This is reflected in the significant difference between VT/AT and RCP. In untrained young subjects VT and AT occurred at about 50% VO2peak with a fat oxidation of 51% in women and 42-46% in men. RCP appeared at about 85% VO2peak leaving only 7% of fat oxidized in women as well as in men. With increasing workload fat oxidation declines while percentage of VO2peak increases as expected.

About the Author

Marcus: MSc. sports science. PHD student, Paracelsus Medical University, Salzburg. Scientific associate at the Institute for Sports Medicine, Prevention & Rehabilitation, Salzburg. Susanne: Dr.sportwiss. Associate professor, Department of Sports Science & Kinesiology, University of Salzburg. Both work in the field of Exercise, Fitness & Health