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- Scopus: eid_2-s2.0-52049116932
- PMID: 18562775
- WOS: WOS:000256759700004
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Article: Effect of preexercise meals with different glycemic indices and loads on metabolic responses and endurance running
Title | Effect of preexercise meals with different glycemic indices and loads on metabolic responses and endurance running |
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Authors | |
Keywords | Preexercise diet Glycemic load Glycemic index Carbohydrate |
Issue Date | 2008 |
Citation | International Journal of Sport Nutrition and Exercise Metabolism, 2008, v. 18, n. 3, p. 281-300 How to Cite? |
Abstract | This study examined the effect of ingesting 3 isocaloric meals with different glycemic indices (GI) and glycemic loads (GL) 2 hr before exercise on metabolic responses and endurance running performance. Eight male runners completed 3 trials in a randomized order, separated by at least 7 days. Carbohydrate (CHO) content (%), GI, and GL were, respectively, 65%, 79, and 82 for the high-GI/high-GL meal (H-H); 65%, 40, and 42 for the low-GI/low-GL meal (L-L); and 36%, 78, and 44 for the high-GI/low-GL meal (H-L). Each trial consisted of a 1-hr run at 70% VO 2max , followed by a 10-km performance run. Low-GL diets (H-L and L-L) were found to induce smaller metabolic changes during the postprandial period and during exercise, which were characterized by a lower CHO oxidation in the 2 trials (p < .05) and a concomitant, higher glycerol and free-fatty-acid concentration in the H-L trial (p < .05). There was no difference, however, in time to complete the preloaded 10-km performance run between trials. This suggests that the GL of the preexercise meal has an important role in determining subsequent metabolic responses. © 2008 Human Kinetics, Inc. |
Persistent Identifier | http://hdl.handle.net/10722/244090 |
ISSN | 2023 Impact Factor: 3.0 2023 SCImago Journal Rankings: 0.763 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Chen, Ya Jun | - |
dc.contributor.author | Wong, Stephen H. | - |
dc.contributor.author | Wong, Chun Kwok | - |
dc.contributor.author | Lam, Ching Wan | - |
dc.contributor.author | Huang, Ya Jun | - |
dc.contributor.author | Siu, Parco M. | - |
dc.date.accessioned | 2017-08-31T08:56:01Z | - |
dc.date.available | 2017-08-31T08:56:01Z | - |
dc.date.issued | 2008 | - |
dc.identifier.citation | International Journal of Sport Nutrition and Exercise Metabolism, 2008, v. 18, n. 3, p. 281-300 | - |
dc.identifier.issn | 1526-484X | - |
dc.identifier.uri | http://hdl.handle.net/10722/244090 | - |
dc.description.abstract | This study examined the effect of ingesting 3 isocaloric meals with different glycemic indices (GI) and glycemic loads (GL) 2 hr before exercise on metabolic responses and endurance running performance. Eight male runners completed 3 trials in a randomized order, separated by at least 7 days. Carbohydrate (CHO) content (%), GI, and GL were, respectively, 65%, 79, and 82 for the high-GI/high-GL meal (H-H); 65%, 40, and 42 for the low-GI/low-GL meal (L-L); and 36%, 78, and 44 for the high-GI/low-GL meal (H-L). Each trial consisted of a 1-hr run at 70% VO 2max , followed by a 10-km performance run. Low-GL diets (H-L and L-L) were found to induce smaller metabolic changes during the postprandial period and during exercise, which were characterized by a lower CHO oxidation in the 2 trials (p < .05) and a concomitant, higher glycerol and free-fatty-acid concentration in the H-L trial (p < .05). There was no difference, however, in time to complete the preloaded 10-km performance run between trials. This suggests that the GL of the preexercise meal has an important role in determining subsequent metabolic responses. © 2008 Human Kinetics, Inc. | - |
dc.language | eng | - |
dc.relation.ispartof | International Journal of Sport Nutrition and Exercise Metabolism | - |
dc.subject | Preexercise diet | - |
dc.subject | Glycemic load | - |
dc.subject | Glycemic index | - |
dc.subject | Carbohydrate | - |
dc.title | Effect of preexercise meals with different glycemic indices and loads on metabolic responses and endurance running | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.pmid | 18562775 | - |
dc.identifier.scopus | eid_2-s2.0-52049116932 | - |
dc.identifier.volume | 18 | - |
dc.identifier.issue | 3 | - |
dc.identifier.spage | 281 | - |
dc.identifier.epage | 300 | - |
dc.identifier.eissn | 1543-2742 | - |
dc.identifier.isi | WOS:000256759700004 | - |
dc.identifier.issnl | 1526-484X | - |