Depending on the duration and intensity of the training or competition, fluids and minerals must be replenished to ensure performance.
The recommendations for hydration are to drink up to 0.75 litres per hour, depending on perspiration and, of course, environmental conditions. No more than a maximum of 0.8 – 1 litre of liquid should be consumed, as the body can hardly absorb more liquid and this would also put too much strain on the stomach.