期刊名称：Journal of the International Society of Sports Nutrition
电子版ISSN：1550-2783
出版年度：2010
卷号：7
期号：1
页码：3
DOI：10.1186/1550-2783-7-3
语种：English
出版社：BioMed Central
摘要：This study was developed to establish whether betaine was present in the sweat of females and to determine any correlations with other sweat components. Sweat patches were placed on eight trained adolescent Highland dancers (age = 13.6 ± 2.3 yr), who then participated in a dance class for 2 hours. Patches were removed, and the sweat recovered via centrifugation. The sweat was subsequently analyzed for betaine, choline, sodium, potassium, chloride, lactate, glucose, urea and ammonia. Betaine was present in the sweat of all subjects (232 ± 84 μmol·L-1), which is higher than typically found in plasma. The concentration of several sweat components were correlated, in particular betaine with most other measured components. Betaine, an osmoprotectant and methyl donor, is a component of sweat that may be lost from the body in significant amounts.
