Abstract:
:The present study investigated the effect of the glycemic index of an evening meal on responses to a standard high glycemic index (HGI) breakfast the following morning. The metabolic responses to exercise 3 h after breakfast were also investigated. Seven active males completed 2 trials. In each trial, participants were provided with an evening meal on day 1, which was composed of either HGI or LGI (high or low glycemic index) carbohydrates. On day 2, participants were provided with a standard HGI breakfast and then performed a 60 min run at 65% VO(2max) 3 h later. Plasma glucose and serum insulin concentrations following breakfast were higher in the HGI trial compared to the LGI trial (P < 0.05). During exercise, there were no differences in substrate utilization. The results suggest that consuming a single LGI evening meal can improve glucose tolerance at breakfast but the metabolic responses to subsequent exercise were not affected.
journal_name
Int J Sport Nutr Exerc Metabauthors
Stevenson E,Williams C,Nute M,Swaile P,Tsui Mdoi
10.1123/ijsnem.15.3.308keywords:
subject
Has Abstractpub_date
2005-06-01 00:00:00pages
308-22issue
3eissn
1526-484Xissn
1543-2742journal_volume
15pub_type
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