On Sweat Analysis for Quantitative Estimation of Dehydration during Physical Exercise

Ring M, Lohmüller C, Rauh M, Eskofier B (2015)

Publication Language: English

Publication Type: Conference contribution

Publication year: 2015

Pages Range: 7011-7014

Conference Proceedings Title: Proceedings of the 2015 37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)

Event location: Milan IT

DOI: 10.1109/EMBC.2015.7320006

Abstract

Quantitative estimation of water loss during physical exercise is of importance because dehydration can impair both muscular strength and aerobic endurance. A physiological indicator for deficit of total body water (TBW) might be the concentration of electrolytes in sweat. It has been shown that concentrations differ after physical exercise depending on whether water loss was replaced by fluid intake or not. However, to the best of our knowledge, this fact has not been examined for its potential to quantitatively estimate TBW loss. Therefore, we conducted a study in which sweat samples were collected continuously during two hours of physical exercise without fluid intake. A statistical analysis of these sweat samples revealed significant correlations between chloride concentration in sweat and TBW loss (r = 0.41, p < 0.01), and between sweat osmolality and TBW loss (r = 0.43, p < 0.01). A quantitative estimation of TBW loss resulted in a mean absolute error of 0.49 l per estimation. Although the precision has to be improved for practical applications, the present results suggest that TBW loss estimation could be realizable using sweat samples.

Authors with CRIS profile

Matthias Ring Lehrstuhl für Informatik 14 (Bild- und Sprachverarbeitung) Manfred Rauh Medizinische Fakultät Björn Eskofier

Related research project(s)

Non-invasive determination of the human hydration level Jan. 1, 2013 - Dec. 31, 2017

How to cite

APA:

Ring, M., Lohmüller, C., Rauh, M., & Eskofier, B. (2015). On Sweat Analysis for Quantitative Estimation of Dehydration during Physical Exercise. In IEEE (Eds.), Proceedings of the 2015 37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC) (pp. 7011-7014). Milan, IT.

MLA:

Ring, Matthias, et al. "On Sweat Analysis for Quantitative Estimation of Dehydration during Physical Exercise." Proceedings of the 37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Milan Ed. IEEE, 2015. 7011-7014.

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