The betaine content of sweat from adolescent females

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Background: This study was developed to establish whether betaine was present in the sweat of females and to determine any correlations with other sweat components.Methods: 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.Results: 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.Conclusion: Betaine, an osmoprotectant and methyl donor, is a component of sweat that may be lost from the body in significant amounts. © 2010 Craig et al; licensee BioMed Central Ltd.




Craig, S. S., Craig, S. A. S., Ganio, M. S., Maresh, C. M., Greg, H., da Costa, K. A., & Zeisel, S. H. (2010). The betaine content of sweat from adolescent females. Journal of the International Society of Sports Nutrition, 7.

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