Hydration and Physical Performance

摘要: There is a rich scientific literature regarding hydration status and physical function that began in the late 1800s, although relationship was likely apparent centuries before that. A decrease body water from normal levels (often referred to as dehydration or hypohydration) provokes changes cardiovascular, thermoregulatory, metabolic, central nervous become increasingly greater worsens. Similarly, performance impairment often reported with modest (e.g., -2% mass) also exacerbated by fluid loss. Dehydration during activity heat decrements than similar cooler conditions, difference thought be due, at least part, cardiovascular thermoregulatory strain associated exposure. little doubt prolonged, continuous exercise impaired of >or= mass, there some evidence lower can impair even relatively short-duration, intermittent exercise. Although additional research needed more fully understand low-level dehydration's effects on performance, one generalize when stake, it better well-hydrated dehydrated. This generalization holds true occupational, military, sports settings.