HOME HELP CONTACT US SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:
Sign In to gain access to subscriptions and/or personal tools.

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Alert me to new issues of the journal Download to citation manager Request Permissions Request Reprints Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Newmark, S. R. Articles by Adams, G. Search for Related Content PubMed Articles by Newmark, S. R. Articles by Adams, G.

Fluid and electrolyte replacement in the ultramarathon runner

Humana Diabetes Center of Excellence, Sunrise Hospital, Las Vegas, Nevada

Frank R. Toppo, MD

Oiram International, Newport Beach, California

Gary Adams, PhD

Nevada Community Cardiac Rehabilitation, Las Vegas, Nevada

We studied three male runners during three separate ultramarathon races. Serial blood samples were tested for electrolytes, renal function, albumin, calcium, phos phorus, and magnesium. Two runners had aldosterone levels measured during the race and one runner had blood lactate levels measured. All runners ingested an isotonic fluid and electrolyte solution during the race. The runners consumed the solution without medical complications and maintained prerace body weights and hydration levels. Each runner maintained normal endocrine/metabolic parameters. We concluded that it is possible to maintain normal hydration and electrolyte states during a prolonged race, provided that sufficient fluid and electrolyte solutions are ingested.