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| Name | Class |
|---|---|
| Team Denmark | OTHER |
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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.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Low group | Experimental | This subjects in this group conducts all their morning exercise sessions with high fat oxidation (in a fasted condition). Thus, the subjects in this group after high intensity exercise in the evening do not get any carbohydrates to eat after training until the exercise session the following morning has been conducted. |
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| High group | Active Comparator | This subjects in this group conducts all their morning exercise sessions with low fat oxidation (in a fed condition). Thus, the subjects in this group after high intensity exercise in the evening do get carbohydrates to eat after training until the exercise session the following morning has been conducted. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Combined exercise and diet intervention | Other | 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. |
| Measure | Description | Time Frame |
|---|---|---|
| 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. | Change from Baseline and after 4 weeks of training |
| Measure | Description | Time Frame |
|---|---|---|
| Protein expression in skeletal muscle tissue | Amount of mitochondrial proteins and enzymes will be measured with a Western Blotting technique | Baseline and after 4 weeks of training |
| The absolute amount of carbohydrate and fat which is metabolised during morning exercise, measured in grams/minute |
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Inclusion Criteria:
Exclusion Criteria:
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|
Fat and carbohydrate oxidation during exercise measured and estimated with indirect calorimetry. |
| Baseline and after 4 weeks of training |