Next Article in Journal
Diet and Dyslipidemias in a Lithuanian Rural Population Aged 25-64: the CINDI Survey
Previous Article in Journal
The Development of Eudragit® NM-Based Controlled-Release Matrix Tablets
Medicina is published by MDPI from Volume 54 Issue 1 (2018). Articles in this Issue were published by another publisher in Open Access under a CC-BY (or CC-BY-NC-ND) licence. Articles are hosted by MDPI on mdpi.com as a courtesy and upon agreement with Lithuanian Medical Association, Lithuanian University of Health Sciences, and Vilnius University.
Open AccessArticle

Application of Multifrequency Bioelectrical Impedance Analysis Method for the Detection of Dehydration Status in Professional Divers

1
Department of Underwater and Hyperbaric Medicine, Istanbul Faculty of Medicine, Istanbul University, Turkey
2
Department of Physiology, Istanbul Faculty of Medicine, Istanbul University, Turkey
*
Author to whom correspondence should be addressed.
Medicina 2012, 48(4), 29; https://doi.org/10.3390/medicina48040029
Received: 26 October 2011 / Accepted: 16 April 2012 / Published: 21 April 2012
Background and Objective. The level of dehydration has been known to be a predisposing factor for the development of decompression sickness in divers. The aim of this study was to determine the level of dehydration in divers who dove with heliox and to determine whether the source of this dehydration was intracellular and/or extracellular by means of multifrequency bioelectrical impedance analysis (MF-BIA).
Material and Methods.
Eleven male professional divers were enrolled in the study. In order to determine the level of dehydration, MF-BIA was carried out (at 5, 50, and 100 kHz) and capillary hematocrit (Hct) was measured two times: one before diving and the other after leaving the pressure room.
Results
. When prediving and postdiving parameters were compared, significant increases in the resistance at 5 kHz (P<0.001), 50 kHz, (P<0.001), and 100 kHz (P<0.01) and Hct (P<0.01) were observed after the diving. Similarly, a statistically significant fluid shift was found: total body water, –1.30 L (P<0.001), extracellular water, –0.85 L (P<0.001); and intracellular water, –0.45 L (P=0.011).
Conclusions. Our results showed that mild dehydration occurred both in the intracellular and extracellular compartments in divers after deep diving. This study also indicates that MF-BIA could be a reliable new method for determining the dehydration status in divers.
Keywords: multifrequency bioelectrical impedance analysis; dehydration; diving; divers; heliox multifrequency bioelectrical impedance analysis; dehydration; diving; divers; heliox
MDPI and ACS Style

Sengun, S.; Uslu, A.; Aydin, S. Application of Multifrequency Bioelectrical Impedance Analysis Method for the Detection of Dehydration Status in Professional Divers. Medicina 2012, 48, 29.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Only visits after 24 November 2015 are recorded.
Back to TopTop