Abstract:
:The study was aimed at assessing the influence of 3-week low glycemic index (LGI) versus moderate glycemic index (MGI) diet on substrate oxidation during incremental exercise. 17 runners completed two 3-week trials of either LGI or MGI diet in a randomised counterbalanced manner. Before and after each trial the incremental cycling test was performed. Metabolic alternations were observed only within tested diets and no significant differences in fat and carbohydrate (CHO) oxidation were found between MGI and LGI diets. Following MGI diet CHO oxidation rate increased. The AUC of fat oxidation decreased after both diets. Percent contribution of fat to energy yield declined, whereas contribution of CHO was augmented following MGI diet. This study indicates that the 3-week MGI diet increased the rate of carbohydrate oxidation during incremental cycling test and improved performance in acute intense exercise test, while both high-carbohydrate diets downregulated fat oxidation rate.
journal_name
Int J Food Sci Nutrjournal_title
International journal of food sciences and nutritionauthors
Durkalec-Michalski K,Zawieja EE,Zawieja BE,Podgórski T,Jurkowska D,Jeszka Jdoi
10.1080/09637486.2017.1411891subject
Has Abstractpub_date
2018-09-01 00:00:00pages
741-752issue
6eissn
0963-7486issn
1465-3478journal_volume
69pub_type
杂志文章,随机对照试验abstract::It is well-documented that body fat and body fat distribution are related to increased risk for cardiovascular disease, hyperinsulinaemia, and diabetes mellitus. The purpose of this study was to investigate the impact of smoking status, physical activity and place of living on body fat and fat distribution of Greek el...
journal_title:International journal of food sciences and nutrition
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