Higher fat oxidation in running than cycling at the same exercise intensities
Abstract
This study examined the differences in fat and carbohydrate oxidation during running and cycling at the same relative exercise intensities, with intensity determined in a number of ways. Specifically, exercise intensity was expressed as a percentage of maximum workload (WL(max)), maximum oxygen uptake (%VO(2max)), and maximum heart rate (%HR(max)) and as rating of perceived exertion (RPE). Ten male triathletes performed maximal running and cycling trials and subsequently exercised at 60%, 65%, 70%, 75%, and 80% of their WL(max). VO(2), HR, RPE, and plasma lactate concentrations were measured during all submaximal trials. Fat and carbohydrate oxidation were calculated from VO(2) and VCO(2) data. A 2-way ANOVA for repeated measures was used to determine any statistically significant differences between exercise modes. Fat oxidation was shown to be significantly higher in running than in cycling at the same relative intensities expressed as either %WL(max) or %VO(2max). Neither were there any significant differences in VO(2max) and HR(max) between the 2 exercise modes, nor in submaximal VO(2) or RPE between the exercise modes at the same %WL(max). However, heart rate and plasma lactate concentrations were significantly higher when cycling at 60% and 65% and 65-80%WL(max), respectively. In conclusion, fat oxidation is significantly higher during running than during cycling at the same relative intensity expressed as either %WL(max) or %VO(2max).
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Greater oxidation rates in running than in cycling.
“with greater oxidation rates in running than in cycling [164]”
From Regulation of Energy Substrate Metabolism in Endurance Exercise (2021) · cites this paper as [164]
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- Authors
- Capostagno, B., & Bosch, A.
- Affiliations
- University of Cape Town (ZA)
- ORCID
- Bosch, Andrew
- Venue
- International Journal of Sport Nutrition and Exercise Metabolism
- Publisher
- Human Kinetics
- Published
- 2010-02
- Volume
- 20
- Issue
- 1
- Pages
- 44-55
- ISSN
- 1526-484X (ISSN-L)
- 1543-2742
- OpenAlex
- W2160715304
- Cited by
- 60
- References
- 28
- Citations by year
- 2026: 1 · 2025: 5 · 2024: 2 · 2023: 3 · 2022: 7 · 2021: 4 · 2020: 9 · 2019: 3 · 2018: 4 · 2017: 3 · 2016: 3 · 2015: 5 · 2014: 4 · 2013: 1 · 2012: 3
- FWCI
- 5.99
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- International Journal of Sport Nutrition and Exercise Metabolism (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Health Sciences › Medicine › Complementary and alternative medicine › Cardiovascular and exercise physiology
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Muscle metabolism and nutrition
- Health Sciences › Medicine › Orthopedics and Sports Medicine › Sports Performance and Training
- Keywords
- fat oxidation, carbohydrate oxidation, running, cycling, exercise intensity, relative exercise intensity, VO2max, heart rate, rating of perceived exertion, plasma lactate, submaximal exercise, triathletes, exercise mode comparison
- MeSH terms
- Adult, Analysis of Variance, Bicycling, Exercise Test, Heart Rate, Humans, Male, Oxidation-Reduction, Oxygen Consumption, Pulmonary Gas Exchange, Running, Cross-Over Studies, Lactic Acid, Carbohydrate Metabolism, Lipid Metabolism
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