Exercising in Queensland during summer is hot work! The body sweats to get rid of internal heat effectively. Sweat is mainly water but also contains important electrolytes sodium and chloride and a small amount of potassium. If the loss of fluid and electrolytes with sweating is not replaced it may cause cramps, heat exhaustion and decrease exercise performance. The following article written by Dr Bergeron of the US Tennis Association includes recommendations for how to manage
water and electrolyte losses for tennis players. Although different for individuals the same principles will apply to all sports and is an interesting read about the importance of adequate hydration when exercising in the heat.
Nutrition: Playing Tennis in the Heat: How to Manage Water ...
The Official Website of the United States Tennis Association