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Hyponatremia Can Happen to Anyone

Ganio, Matthew S MS; Armstrong, Lawrence E PhD; Casa, Douglas J PhD, ATC

Strength & Conditioning Journal: April 2008 - Volume 30 - Issue 2 - p 53-55
doi: 10.1519/SSC.0b013e31816a22ad
COLUMNS: The Journal of Strength and Conditioning Research Corner

Hyponatremia is a serious medical condition in which blood sodium (NA+) levels are below 130 mmol·L−1. This can occur when an individual drinks more fluid than necessary or large amounts of Na+ are lost through sweat. Symptoms include disorientation, altered mental status, coma, headache, vomiting, bloating, lethargy, and swelling of the extremities. These symptoms may develop during exercise or several hours after exercise is discontinued. Reducing the risk of hyponatremia includes the ingestion of Na+ containing fluids and the avoidance of overdrinking. Coaches and athletes should be aware of the signs and symptoms of hyponatremia, how to reduce the risk of hyponatremia, and when to contact medical professionals.

Human Performance Laboratory, Department of Kinesiology, Neag School of Education, University of Connecticut, Storrs, Connecticut

Matthew S. Ganio is a research assistant and doctoral candidate in the Department of Kinesiology at the University of Connecticut.

Lawrence E. Armstrong is Professor of Kinesiology at the University of Connecticut.

Douglas J. Casa is Associate Professor of Kinesiology and Director of Athletic Training Education at the University of Connecticut.

© 2008 National Strength and Conditioning Association