Search Results

You are looking at 1 - 10 of 181 items for :

  • "fat oxidation" x
  • Refine by Access: All Content x
Clear All
Restricted access

Determinants of Peak Fat Oxidation Rates During Cycling in Healthy Men and Women

Oliver J. Chrzanowski-Smith, Robert M. Edinburgh, Mark P. Thomas, Aaron Hengist, Sean Williams, James A. Betts, and Javier T. Gonzalez

Carbohydrate and fat represent the two main fuels oxidized during endurance-based exercise ( Romijn et al., 1993 ; van Loon et al., 2001 ). Carbohydrate utilization increases with exercise intensity, with a reciprocal decrease in the relative contribution of fat oxidation ( Achten et al., 2002

Restricted access

Metabolism and Whole-Body Fat Oxidation Following Postexercise Carbohydrate or Protein Intake

Ulrika Andersson-Hall, Stefan Pettersson, Fredrik Edin, Anders Pedersen, Daniel Malmodin, and Klavs Madsen

In order to maximize the adaptive response to endurance training among athletes and/or to promote healthy living in the general population, there has recently been interest in ways to increase the capacity of fat oxidation during exercise. As glycogen stores are limited, a higher reliance on fat

Restricted access

Matcha Green Tea Drinks Enhance Fat Oxidation During Brisk Walking in Females

Mark Elisabeth Theodorus Willems, Mehmet Akif Şahin, and Matthew David Cook

reported health benefits of regular intake of green tea such as a reduced risk for some cancers ( Guo et al., 2017 ) and cardiovascular and ischemic-related diseases ( Pang et al., 2016 ). Green tea has also been implicated in body weight management ( Janssens et al., 2016 ) by promoting fat oxidation

Restricted access

Diurnal Variation of Maximal Fat-Oxidation Rate in Trained Male Athletes

Francisco J. Amaro-Gahete, Lucas Jurado-Fasoli, Alejandro R. Triviño, Guillermo Sanchez-Delgado, Alejandro De-la-O, Jørn W. Helge, and Jonatan R. Ruiz

energy storage is effectively unlimited during prolonged exercise. 3 Therefore, the capacity to adapt fuel oxidation to fuel availability (known as metabolic flexibility) is a key determinant of endurance sport performance. 4 Therefore, the maximal fat oxidation (MFO) capacity during a graded exercise

Restricted access

Astaxanthin Supplementation Increases Glutathione Concentrations but Does Not Impact Fat Oxidation During Exercise in Active Young Men

Matthew J. McAllister, Joni A. Mettler, Kyle Patek, Matthew Butawan, and Richard J. Bloomer

), some have been found to enhance fat oxidation during exercise and improve markers of cardiometabolic health ( Brown et al., 2021 ; Soory, 2012 ). The relationship between substrate oxidation during exercise and cardiometabolic health has been recently documented such that individuals with increased

Restricted access

Chronic Statin Treatment Does Not Impair Exercise Lipolysis or Fat Oxidation in Exercise-Trained Individuals With Obesity and Dyslipidemia

Laura Alvarez-Jimenez, Alfonso Moreno-Cabañas, Felix Morales-Palomo, Juan F. Ortega, and Ricardo Mora-Rodriguez

therefore, they are overly reliant on carbohydrate-derived energy sources. However, when their aerobic fitness level improves with exercise training, their rates of fat oxidation during low-intensity exercise could be similar to the ones of healthy untrained young individuals ( Alvarez-Jimenez, Moreno

Restricted access

Increased Fat Oxidation During Arm Cycling Exercise in Adult Men With Spinal Cord Injury Compared With Noninjured Controls

Soraya Martín-Manjarrés, Carlos Rodríguez-López, María Martín-García, Sara Vila-Maldonado, Cristina Granados, Esmeralda Mata, Ángel Gil-Agudo, Irene Rodríguez-Gómez, and Ignacio Ara

, 2004 ; Knechtle et al., 2003 ; Knechtle, Müller, Willmann, et al., 2004 ) were the first authors comparing fat oxidation rates related to exercise intensity in SCI and noninjured individuals; however, their sample was too small, considering the sample size calculation in this kind of study ( n  = 10

Restricted access

Correlation Between Heart Rate at Maximal Fat Oxidation and Aerobic Threshold in Healthy Adolescent Boys and Girls

Marco Meucci, Vibhav Nandagiri, Venkata S. Kavirayuni, Alexander Whang, and Scott R. Collier

The term Fat max is defined as the exercise intensity at which maximal fat oxidation (MFO; maximal capacity of the body to oxidize fat) occurs ( 9 , 16 ). Exercising at Fat max may be of greater benefit as a body mass loss strategy as previous studies have shown that adults and children can lower

Open access

Fasting Before Evening Exercise Reduces Net Energy Intake and Increases Fat Oxidation, but Impairs Performance in Healthy Males and Females

Tommy Slater, William J.A. Mode, Mollie G. Pinkney, John Hough, Ruth M. James, Craig Sale, Lewis J. James, and David J. Clayton

increases fat oxidation ( Edinburgh et al., 2019 ; Gonzalez et al., 2013 ), which may drive adaptations leading to improved markers of metabolic health ( Robinson et al., 2015 ). Almost all research on fasted exercise has been undertaken in the morning because the overnight fast offers a practical and

Restricted access

Postexercise Fat Oxidation: Effect of Exercise Duration, Intensity, and Modality

Amy Warren, Erin J. Howden, Andrew D. Williams, James W. Fell, and Nathan A. Johnson

Postexercise fat oxidation may be important for exercise prescription aimed at optimizing fat loss. The authors examined the effects of exercise intensity, duration, and modality on postexercise oxygen consumption (VO2) and substrate selection/respiratory-exchange ratio (RER) in healthy individuals. Three experiments (n = 7 for each) compared (a) short- (SD) vs. long-duration (LD) ergometer cycling exercise (30 min vs. 90 min) matched for intensity, (b) low- (LI) vs. high-intensity (HI) cycling (50% vs. 85% of VO2max) matched for energy expenditure, and (c) continuous (CON) vs. interval (INT) cycling matched for energy expenditure and mean intensity. All experiments were administered by crossover design. Altering exercise duration did not affect postexercise VO2 or RER kinetics (p > .05). However, RER was lower and fat oxidation was higher during the postexercise period in LD vs. SD (p < .05). HI vs. LI resulted in a significant increase in total postexercise energy expenditure and fat oxidation (p < .01). Altering exercise modality (CON vs. INT) did not affect postexercise VO2, RER, or fat oxidation (p > .05). These results demonstrate that postexercise energy expenditure and fat oxidation can be augmented by increasing exercise intensity, but these benefits cannot be exploited by undertaking interval exercise (1:2-min work:recovery ratio) when total energy expenditure, duration, and mean intensity remain unchanged. In spite of the apparent benefit of these strategies, the amount of fat oxidized after exercise may be inconsequential compared with that oxidized during the exercise bout.