Does going to the toilet before exercising improve athletic performance?

A visit to the toilet before exercise is said to positively influence sports performance. Although the effect may vary from person to person, there are some advantages to an empty bladder and bowels during physical exertion. However, the improvement in performance itself is not significant.

A full bladder or bowel can cause discomfort, which can affect your performance or concentration during your workout. Going to the toilet before exercising can reduce the risk of an emergency during exercise.

A full bladder or bowel can put pressure on other organs, such as the diaphragm. This can restrict your breathing and range of motion, which is especially detrimental during high-intensity sports such as running or weightlifting.

Although the weight you lose from going to the toilet is relatively small, a lighter body state can psychologically contribute to better performance, especially in sports where speed or endurance is important.

In sports such as running or jumping, the impact of movement can put extra pressure on a full bladder or bowel. This can lead to discomfort or even leakage, especially in women.

Going to the toilet before exercising can improve your performance by reducing discomfort, distraction and restrictions on your range of motion. Although the effect on performance is indirect, an empty state contributes to a more comfortable and focused training or competition.

Source: https://www.sciencedirect.com/science/article/pii/S2666337624000404

Author: Prof. Dr. Dirk Devroey - Latest update: 2025-01-10 - Copyright: Clinifacts 2025