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.
Study Type
OBSERVATIONAL
Enrollment
16
Participating in the Grand Tour as cyclist
KU Leuven
Leuven, Vlaams-Brabant, Belgium
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)
Time frame: 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)
Time frame: 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)
Time frame: 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
Time frame: Start of the Grand Tour - restday 1 of the Grand Tour - restday 2 of the Grand Tour - last day of the Grand Tour
Wakefulness after sleep onset
Percentage change in wakefulness after sleep onset during the Grand Tour (measured by OURA ring)
Time frame: Every night starting from one week before till the last night of the Grand Tour
Light sleep
Percentage change in light sleep during the Grand Tour (measured by OURA ring)
Time frame: Before the start of the Tour - restday 1 - restday 2 - end of Grand Tour
Deep sleep
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Percentage change in deep sleep during the Grand Tour (measured by OURA ring)
Time frame: 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)
Time frame: 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
Time frame: 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)
Time frame: Start of the Grand Tour - restday 1 of the Grand Tour - restday 2 of the Grand Tour - last day of the Grand Tour