This study investigates the influence of competition and cooperation on trained, competitive cyclists. It will observe how these conditions affect fatigue during a four-kilometer time trial. The study aims to understand if competing against one's own best performance or cooperating in team scenarios changes performance levels.

Participants will undergo a four-kilometer cycling time trial under conditions of deception, where they might believe they are competing against their own best performance. The study will analyze the physiological effects of fatigue and how different scenarios impact power output and endurance.

• Who can participate: Participants must be competitive cyclists with at least one year of experience and regularly engage in interval-type training. They should have experience with road cycling, time trial, track, and/or criterium racing. Participants must be free of cardiopulmonary diseases and not use tobacco or certain medications.
• Study details: Participants will be involved in a cycling time trial where they might be deceived into believing they are racing against their best performance. They need to abstain from alcohol, intense exercise, caffeine, and food for specific periods before testing.