Faculty of Biology, University of Latvia
EEB
Hard copy: ISSN 1691–8088
On-line: ISSN 2255–9582
Environ Exp Biol (2018) 16: 49–53
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Environmental and
Experimental
Biology

Environ Exp Biol (2018) 16: 49–53

Orginal Paper

Acute effect of low and moderate glycemic index drinks on plasma glucose level in professional football players during prolonged intermittent exercise

Zane Andersone1, Līga Ozoliņa-Moll2*
1 Department of Sports and Nutrition, Riga Stradins University, Anninmuizas 26A, Riga LV–1067, Latvia
2 Department of Human and Animal Biology, Faculty of Biology, University of Latvia, Jelgavas 1, Riga LV–1004, Latvia
* Corresponding author, E-mail: ligaozol@lu.lv

Abstract

Carbohydrate is the main fuel for muscles during exercise and depletion of glycogen stores has been associated with the onset of fatigue. However, scientific evidence of the importance of carbohydrate in energy supply in athletes is still conflicting. The aim of the study was to evaluate changes of the plasma glucose in professional athletes – football players – during prolonged exercise after intake of drinks with different glycemic index (GI). In total, 24 athletes participated in the study. During two 90-min exercise sessions of football training games, the plasma glucose level was measured every 15 min. In the first session changes of plasma glucose level were measured after consumption of a low GI drink, and in the second session after consumption of a moderate GI drink. The results of the study indicated that plasma glucose level did not differ significantly over a 90 min intermittent exercise after ingestion of moderate and low GI drinks.

Key words: football players, glycemic index, intermittent exercise, plasma glucose.

 
Environ Exp Biol (2018) 16: 49–53
 DOI: http://doi.org/10.22364/eeb.16.07
EEB

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Prof. Gederts Ievinsh
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University of Latvia

 
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