Hydration prior to workout is still a big consideration. It is possible that if your athlete is dehydrated when they come to the gym, a sports drink might not give them what they need as much as water would. Temperature, humidity and type of exercise play a role too. Of course, as the weather warms up, it is vital that you and your athletes are properly hydrated. Be aware that caffeine and alcohol have a dehydrating effect Drink cool fluids - this will help to cool your body, and cool fluids move through the stomach faster, thus allowing for more rapid absorption.
Losses can range anywhere from one cup to two quarts an hour.
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