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Written by Superhuman
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Thursday, 17 January 2008 |
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Dehydration decreases endurance performance and increases the risk of heat injuries, such as ...
heat stroke and heat exhaustion. Decreased body water makes it more difficult to regulate body temperature, which is essential for efficient and forceful muscle contractions. Researchers from the University of Connecticut, led by Daniel Judelson, found that dehydration reduced muscle strength during a multiple-set squat workout (6 sets of 10 reps). They examined strength, power and psychological status in college men in various states of hydration (normally hydrated or dehydrated by 2.5 percent and 5 percent of bodyweight). Dehydration did not affect maximum strength or power, but caused progressively poorer performance during the squat workout. Dehydration also impaired psychological well-being by contributing to tension, anxiety, depression, anger, hostility, fatigue, confusion and total mood disturbance. This study showed the importance of adequate hydration for strength and power athletes. (Medicine Science Sports Exercise, 39: 1817-1824, 2007)
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