Inclusion Criteria:  males between 18-50 years of age moderate to trained individuals with a VO2max > 50 ml/min/kg  Exclusion Criteria:  persons diagnosed with metabolic diseases (i.e. Type 2 Diabetes) which relates to the carbohydrate metabolism. persons ingesting prescribed drugs/medicin, supplements or a special diet (i.e. low carbohydrate), which might affect the glykogen synthesis and/or performance.