Plasma Mineral Levels in Marathon Runners During a 20-Day Road Race
- 31 May 1982
- journal article
- research article
- Published by Taylor & Francis in The Physician and Sportsmedicine
- Vol. 10 (6) , 113-118
- https://doi.org/10.1080/00913847.1982.11947250
Abstract
Sports nutritionists generally think an athlete's increased mineral requirements can be satisfied by a greater but well-balanced caloric intake. This study supports that concept, demonstrating that 12 male runners who consumed an unrestricted, isocaloric diet maintained normal plasma mineral levels without using mineral supplements during a 500-km (312-mile) road race. None of the nine minerals tested (calcium, phosphorus, sodium, potassium, chloride, magnesium, iron, copper, and zinc) showed tendencies to become persistently reduced over the 20-day period.Keywords
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