Relentless Forward Progress: A Guide to Running Ultramarathons by Bryon Powell

Author:Bryon Powell [Powell, Bryon]
Language: eng
Format: epub
Tags: QuarkXPress, epub, ebook
Publisher: Breakaway Books
Published: 2011-04-12T04:00:00+00:00

Electrolytes and Hydration

During long bouts of exercise, be sure to take in electrolytes. In fact, it’s crucial to maintain a proper balance between water and electrolyte intake—this balance plays an important role in muscle, digestive, and other bodily systems.* Electrolytes include water-soluble ions such as sodium, potassium, calcium, magnesium, and chloride. Each of these electrolytes is shed from the human body in sweat. While modern diets provide sufficient amounts of these minerals for less active individuals, sweat loss from prolonged exercise easily results in short-term electrolyte deficiencies when insufficient amounts of electrolytes are consumed during exercise.

* The most dangerous hydration–electrolyte imbalance, dilutional hyponatremia, is caused by overhydrating while consuming insufficient electrolytes. See the Water–Electrolyte Balance table (page 127) for more information regarding the symptoms and treatment of dilutional hyponatremia.

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