Insulin sensitivity derived from oral glucose tolerance testing in athletes: Disagreement between available indices |
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| Authors: | Konstantinos Niakaris Faidon Magkos Nikos Geladas Labros S Sidossis |
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| Affiliation: | 1. Department of Sport Medicine and Biology of Exercise, Faculty of Physical Education and Sport Sciences , University of Athens , Athens and;2. Laboratory of Nutrition and Clinical Dietetics, Department of Nutrition and Dietetics , Harokopio University , Athens, Greece |
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| Abstract: | The aims of the present study were to determine whether available “fasting” and oral glucose tolerance test-derived insulin sensitivity indices could effectively discriminate between individuals with higher than normal insulin sensitivity, and whether they would all provide similar information in clinical practice. Sprint runners (n = 8), endurance runners (n = 8) and sedentary controls (n = 7) received a 75-g oral glucose tolerance test. All participants were healthy lean males, aged 21?–?29 years. Besides glucose and insulin responses, a total of nine such indices were computed. Fasting as well as post-load glucose concentrations were similar in the three groups, while basal plasma insulin and the insulinaemic response to glucose were both higher in untrained individuals (at P?P?P?
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| Keywords: | Athletes endurance glucose tolerance insulin sensitivity oral glucose tolerance test sprint |
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