Physical activity and hydration

Water needs are conditioned by the metabolism of the person, temperature and humidity and the physical activity we perform, so that athletes need more water than people with a sedentary lifestyle.

A properly nourished person can calculate his/her water needs based on the energy they expend: 

For each calorie consumed, the body needs 1 ml of water. 

Example: A person with a daily intake of 3,000 calories needs to drink at least 3 litres of water per day.

Adequate hydration is essential to ensure body homoeostasis, which is the condition in which the cells and organs work properly. If the amount of liquid in the body decreases, environmental conditions become stressful to the cells.

Almost 90% of the weight lost during exercise is water. Many coaches weigh their athletes before and after exercise and competitions, for athletes to recover the initial weight by drinking water. This practice of weighing before and after exercise and drinking the difference, is a great way to hydrate the body and avoid the risk of dehydration.

Also, it is evident that drinking affects performance for from 40 - 50 minutes after exercise, so that professional athletes drink before and during exercise stress tests, such as marathons or tennis and soccer matches.

Find out how much water these athletes lose ...


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