The investigators will examine the long-term effects of a combined training and diet intervention that, acutely, increases fat oxidation during exercise. This is done with a 4 week intervention study with moderately trained cyclists. Performance is tested pre and post intervention and muscle biopsies are obtained.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
OTHER
Masking
SINGLE
Enrollment
20
Both groups exercise 6 times per week in 4 weeks conducted as 3 evening and 3 morning sessions per week. Both groups receive dietary products to be consumed immediately before and after each evening and morning session, respectively. One group conduct morning sessions in a fasted state, the other conduct the morning sessions in a fed state. Performance pre and post is measured, and muscle biopsies are obtained.
Time trial performance measured in Watts
30 min time trial after 90 minutes of intensive cycling. The average amount of Watts during the 30 minutes will be measured.
Time frame: Change from Baseline and after 4 weeks of training
Protein expression in skeletal muscle tissue
Amount of mitochondrial proteins and enzymes will be measured with a Western Blotting technique
Time frame: Baseline and after 4 weeks of training
The absolute amount of carbohydrate and fat which is metabolised during morning exercise, measured in grams/minute
Fat and carbohydrate oxidation during exercise measured and estimated with indirect calorimetry.
Time frame: Baseline and after 4 weeks of training
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