It is well-established that exercise has many health benefits. During exercise in temperate/hot conditions, sweating is necessary to dissipate heat. This sweating typically results in dehydration, which may impair physical and mental performance. Therefore, following exercise, effective rehydration is important to restore an optimal hydration state and therefore physical and mental performance. If an individual only rehydrates with water, though, it is unlikely that they will fully rehydrate as plain water is not very well-retained by the body, due to its lack of carbohydrate and electrolytes. For this reason, sports/ hydration drinks are likely to aid in better rehydration, due to their carbohydrate and electrolyte content. This project aims to compare the rehydration effectiveness and glucose responses to two sports / hydration drinks and water (with different carbohydrate and electrolyte contents).
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Net water Balance
Timeframe: Baseline (pre-exercise), post-exercise, and 0, 1, 2, 3, and 4 h post-rehydration
Cumulative urine volume
Timeframe: 0, 1, 2, 3, and 4 h post-rehydration
Total urine volume
Timeframe: Sum of urine produced at 0, 1, 2, 3, and 4 h post-rehydration
Water retention
Timeframe: 4 h post-rehydration