This subproject is one of many research subprojects utilizing theresources provided by a Center grant funded by NIH/NCRR. The subproject andinvestigator (PI) may have received primary funding from another NIH source,and thus could be represented in other CRISP entries. The institution listed isfor the Center, which is not necessarily the institution for the investigator.Bioelectric impedance technology has been used to estimate hydration status in different populations. The impedance procedure is painless, non-invasive and gives results quickly. Dehydration can place soldiers working in extremely hot, arid environments at increased risk for heat injuries. A quick, non-invasive field method to assess hydration could help health professionals working with soldiers in hot environments identify soldiers who are at risk of dehydration. The purpose of this study is to compare the efficacy of two commercially available impedance analyzers to estimate hydration status in 40 young men aged 18-30 years. On a single visit, we will assess total body water using deuterium (non-radioactive isotope) as a reference method. Total body water will also be estimated using the Xitron multifrequency bio-electric impedence analyzer and the new handheld Nova Industries impedance analyzer. Furthermore, body composition in these young men will also be assessed using dual energy x-ray absorptiometry (DXA). The data from the impedance devices will be compared to the gold standards to assess the accuracy of estimations of total body water.

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
General Clinical Research Centers Program (M01)
Project #
5M01RR002719-22
Application #
7607483
Study Section
National Center for Research Resources Initial Review Group (RIRG)
Project Start
2006-12-01
Project End
2007-09-16
Budget Start
2006-12-01
Budget End
2007-09-16
Support Year
22
Fiscal Year
2007
Total Cost
$1,439
Indirect Cost
Name
Johns Hopkins University
Department
Internal Medicine/Medicine
Type
Schools of Medicine
DUNS #
001910777
City
Baltimore
State
MD
Country
United States
Zip Code
21218
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