Analysis of levels of water loss and percentage of sweat rate in competitive swimmers from São Caetano do Sul-SP
Abstract
Swimming modifies the relationship of body thermogenesis, thereby influencing hydration. Hydration is essential for good athletic performance and the percentage of water loss and sweat rate are efficient methods to assess the state of hydration. The objective was to analyze and compare the water loss and sweat rate of swimmers in São Caetano do Sul. The sample consisted of 14 athletes of both genders, aged 15 to 20 years. They trained 2 hours a day, five times a week. The athletes were weighed before and after practice to calculate the rate of sweating and water loss. Information about the type and amount of ingested fluid were taken from each athlete. These data were collected in a single day. Of the sample, 57.14% drank water, took 35.72% carbohydrate solution and 7.14% is not hydrated. The average sweat rate in hydration with water was 5.8 ml/min and hydration with maltodextrina was 5.7 ml/min. All finished the training well hydrated Immersion lose heat faster than on land, causing the stimulus for the sweating is low. However, dehydration can occur, the main risk to theathletes in the heat, requiring replacement of water losses. It follows that even the sweat rate of the swimmers to be low compared to other sports, this should be considered toavoid dehydration, because it is progressive and cumulative.
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