Deighton, K, Duckworth, L, Matu, J et al. (6 more authors) (2016) Mouth rinsing with a sweet solution increases energy expenditure and decreases appetite during 60 min of self-regulated walking exercise. Applied Physiology, Nutrition, and Metabolism, 41 (12). pp. 1255-1261. ISSN 1715-5312
Abstract
Carbohydrate mouth rinsing can improve endurance exercise performance and is most ergogenic when exercise is completed in the fasted state. This strategy may also be beneficial to increase exercise capacity and the energy deficit achieved during moderate-intensity exercise relevant to weight control when performed after an overnight fast. Eighteen healthy men (mean (SD); age, 23 (4) years; body mass index, 23.1 (2.4) kg·m−2) completed a familiarisation trial and 3 experimental trials. After an overnight fast, participants performed 60 min of treadmill walking at a speed that equated to a rating of perceived exertion of 13 (“fairly hard”). Participants manually adjusted the treadmill speed to maintain this exertion. Mouth rinses for the experimental trials contained either a 6.4% maltodextrin solution with sweetener (CHO), a taste-matched placebo (PLA), or water (WAT). Appetite ratings were collected using visual analogue scales and exercise energy expenditure and substrate oxidation were calculated from online gas analysis. Increased walking distance during CHO and PLA induced greater energy expenditure compared with WAT (mean difference (90% confidence interval); 79 (60) kJ, P = 0.035, d = 0.24; and 90 (63) kJ, P = 0.024, d = 0.27, respectively). Appetite area under the curve was lower in CHO and PLA than WAT (8 (6) mm, P = 0.042, d = 0.43; and 6 (8) mm, P = 0.201, d = 0.32, respectively). Carbohydrate oxidation was higher in CHO than PLA and WAT (7.3 (6.7) g, P = 0.078, d = 0.47; and 10.1 (6.5) g, P = 0.015, d = 0.81, respectively). This study provides novel evidence that mouth rinsing with a sweetened solution may promote a greater energy deficit during moderate-exertion walking exercise by increasing energy expenditure and decreasing appetite. A placebo effect may have contributed to these benefits.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2016, NRC Research Press or its licensors. This is an author produced version of a paper published in Applied Physiology, Nutrition, and Metabolism. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | appetite regulation, energy balance, metabolism, substrate oxidation, cephalic phase response, oral nutrient sensing |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Medicine and Health (Leeds) > School of Medicine (Leeds) > Leeds Institute of Health Sciences (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 27 Mar 2018 09:28 |
Last Modified: | 27 Mar 2018 09:28 |
Status: | Published |
Publisher: | NRC Research Press |
Identification Number: | 10.1139/apnm-2016-0344 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:128883 |