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This project aims to identify the effect of a 3-week Grand Tour (e.g. Tour de France, Giro d'Italia, and Vuelta a España) on sleep, hematological parameters and the serum metabolome in world-class cyclists.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Elite cyclists participating in a Grand Tour |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Cyclist | Other | Participating in the Grand Tour as cyclist |
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| Measure | Description | Time Frame |
|---|---|---|
| Serum metabolome abundance of cyclists participating in a Grand Tour | Changes in the abundance of serum metabolites within the cyclists between 4 timepoints (measured by mass spectrometry) | Start of the Grand Tour - restday 1 of the Grand Tour - restday 2 of the Grand Tour - last day of the Grand Tour |
| Sleep efficiency during the Grand Tour | Percentage change in sleep efficiency during the Grand Tour (measured by OURA ring) | Every night starting from one week before till the last night of the Grand Tour |
| Total sleep time during the Grand Tour | Change in total sleep time during the Grand Tour (measured by OURA ring) | Every night starting from one week before till the last night of the Grand Tour |
| Blood haemoglobin concentration | Change in the blood haemoglobin concentration during the Grand Tour | Start of the Grand Tour - restday 1 of the Grand Tour - restday 2 of the Grand Tour - last day of the Grand Tour |
| Measure | Description | Time Frame |
|---|---|---|
| Wakefulness after sleep onset | Percentage change in wakefulness after sleep onset during the Grand Tour (measured by OURA ring) | Every night starting from one week before till the last night of the Grand Tour |
| Light sleep |
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Inclusion Criteria:
Exclusion Criteria:
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Elite cyclist participating in a Grand Tour (e.g. Tour de France, Vuelta a España, Giro d'Italia)
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| KU Leuven | Leuven | Vlaams-Brabant | 3000 | Belgium |
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Percentage change in light sleep during the Grand Tour (measured by OURA ring)
| Before the start of the Tour - restday 1 - restday 2 - end of Grand Tour |
| Deep sleep | Percentage change in deep sleep during the Grand Tour (measured by OURA ring) | Before the start of the Tour - restday 1 - restday 2 - end of Grand Tour |
| REM sleep | Percentage change in REM sleep during the Grand Tour (measured by OURA ring) | Before the start of the Tour - restday 1 - restday 2 - end of Grand Tour |
| Red blood cell concentration | Change in red blood cell concentration during the Grand Tour | Start of the Grand Tour - restday 1 of the Grand Tour - restday 2 of the Grand Tour - last day of the Grand Tour |
| Subjective fatigue | Absolute change in subjective fatigue during the Grand Tour (measured by 11-point scale) | Start of the Grand Tour - restday 1 of the Grand Tour - restday 2 of the Grand Tour - last day of the Grand Tour |