Effect of glycemic index of pre-exercise meals on fat and carbohydrate oxidation

This study investigated the effects of consuming a high or low glycemic index (GI) meal, matched for volume, on fat and carbohydrate oxidation during exercise. Five male endurance runners (age: 22.4 ± 1.1; BMI: 22.1 ± 1.1kg/m2; VO2max: 53.7 ± 5.8ml/kg/m) participated in two trials in a randomized, c...

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Main Author: Choo, Jia Yi
Other Authors: National Institute of Education
Format: Final Year Project
Language:English
Published: 2014
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Online Access:http://hdl.handle.net/10356/59062
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-590622020-09-27T20:21:42Z Effect of glycemic index of pre-exercise meals on fat and carbohydrate oxidation Choo, Jia Yi National Institute of Education Stephen Burns DRNTU::Science This study investigated the effects of consuming a high or low glycemic index (GI) meal, matched for volume, on fat and carbohydrate oxidation during exercise. Five male endurance runners (age: 22.4 ± 1.1; BMI: 22.1 ± 1.1kg/m2; VO2max: 53.7 ± 5.8ml/kg/m) participated in two trials in a randomized, cross-over study, separated by at least seven days. The participants ran on the treadmill at 70% VO2max for 5km, two hours after consuming either a high (GI = 74) or low (GI = 42) GI meal. The meals consisted of 250ml of cereal and 300ml of skimmed milk, 300ml of water was also given with the meal. Results showed no significant differences for fat (high GI: 0.34 ± 0.11; low GI: 0.33 ± 0.07; p = 0.85) and carbohydrate oxidation (high GI: 2.22 ± 0.42; low GI: 2.25 ± 0.29; p = 0.83) between the two trials. In addition, no differences in heart rate (HR) (high GI: 153 ± 10.51; low GI: 155 ± 1.63; p = 0.73) and rate of perceived exertion (RPE) (high GI: 12 ± 0.82; low GI: 11 ± 0.36; p = 0.07) were found between the two trials. The lack of significant differences between the two trials could be due to the insufficient duration of the run and the exercise intensity could have been too high to elicit any disparity in substrate oxidation. In summary, consuming a high or low GI meal prior to exercise did not have any effect on fat and carbohydrate oxidation during exercise. Bachelor of Science (Sport Science and Management) 2014-04-22T03:07:55Z 2014-04-22T03:07:55Z 2014 2014 Final Year Project (FYP) http://hdl.handle.net/10356/59062 en 60 p. application/pdf
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic DRNTU::Science
spellingShingle DRNTU::Science
Choo, Jia Yi
Effect of glycemic index of pre-exercise meals on fat and carbohydrate oxidation
description This study investigated the effects of consuming a high or low glycemic index (GI) meal, matched for volume, on fat and carbohydrate oxidation during exercise. Five male endurance runners (age: 22.4 ± 1.1; BMI: 22.1 ± 1.1kg/m2; VO2max: 53.7 ± 5.8ml/kg/m) participated in two trials in a randomized, cross-over study, separated by at least seven days. The participants ran on the treadmill at 70% VO2max for 5km, two hours after consuming either a high (GI = 74) or low (GI = 42) GI meal. The meals consisted of 250ml of cereal and 300ml of skimmed milk, 300ml of water was also given with the meal. Results showed no significant differences for fat (high GI: 0.34 ± 0.11; low GI: 0.33 ± 0.07; p = 0.85) and carbohydrate oxidation (high GI: 2.22 ± 0.42; low GI: 2.25 ± 0.29; p = 0.83) between the two trials. In addition, no differences in heart rate (HR) (high GI: 153 ± 10.51; low GI: 155 ± 1.63; p = 0.73) and rate of perceived exertion (RPE) (high GI: 12 ± 0.82; low GI: 11 ± 0.36; p = 0.07) were found between the two trials. The lack of significant differences between the two trials could be due to the insufficient duration of the run and the exercise intensity could have been too high to elicit any disparity in substrate oxidation. In summary, consuming a high or low GI meal prior to exercise did not have any effect on fat and carbohydrate oxidation during exercise.
author2 National Institute of Education
author_facet National Institute of Education
Choo, Jia Yi
format Final Year Project
author Choo, Jia Yi
author_sort Choo, Jia Yi
title Effect of glycemic index of pre-exercise meals on fat and carbohydrate oxidation
title_short Effect of glycemic index of pre-exercise meals on fat and carbohydrate oxidation
title_full Effect of glycemic index of pre-exercise meals on fat and carbohydrate oxidation
title_fullStr Effect of glycemic index of pre-exercise meals on fat and carbohydrate oxidation
title_full_unstemmed Effect of glycemic index of pre-exercise meals on fat and carbohydrate oxidation
title_sort effect of glycemic index of pre-exercise meals on fat and carbohydrate oxidation
publishDate 2014
url http://hdl.handle.net/10356/59062
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