Acoustical method of whole-body hydration status monitoring
- 82 Downloads
An acoustical handheld hydration monitor (HM) for assessing the water balance of the human body was developed. Dehydration is a critical public health problem. Many elderly over age of 65 are particularly vulnerable as are infants and young children. Given that dehydration is both preventable and reversible, the need for an easy-to-perform method for the detection of water imbalance is of the utmost clinical importance. The HM is based on an experimental fact that ultrasound velocity in muscle is a linear function of water content and can be referenced to the hydration status of the body. Studies on the validity of HM for the assessment of whole-body hydration status were conducted in the Appalachian State University, USA, on healthy young adults and on elderly subjects residing at an assisted living facility. The HM was able to track changes in total body water during periods of acute dehydration and rehydration in athletes and day-to-day and diurnal variability of hydration in elderly. Results of human studies indicate that HM has a potential to become an efficient tool for detecting abnormal changes in the body hydration status.
Keywordsbody hydration hydration monitor ultrasound velocity
Unable to display preview. Download preview PDF.
- 2.A. P. Sarvazyan and A. G. Lyrchikov, in Biomechanics in Medicine and Surgery 1. (Riga, 1986), pp. 353–358.Google Scholar
- 4.A. P. Sarvazyan., in Handbook of Elastic properties of Solids, Liquids and Gases, Ed. by Bass, L. and Stern, (Academic, 2001), pp. 107–127.Google Scholar
- 5.B. Hamilton and R. Schwartz, J. Biol. Chem., 1935, vol. 109, p. 745.Google Scholar
- 19.W. Oh, Fluid and electrolyte management, in Neonatal-Perinatal Medicine: Diseases of the Fetus and Infant. Ed. by Fanaroff, A. A. and Martin, R. J., 6th ed. (St. Louis, Mosby, 1997). pp. 622–638.Google Scholar
- 25.A. Al-Jalal, S. Al-Kaabi, Y. Al-Nassar, and M. Khan, NDT. net The e-Journal of Nondestructive Testing, 2006, vol. 11, no. 6.Google Scholar
- 26.ASTM F1469-11. Standard Guide for Conducting a Repeatability and Reproducibility Study on Test Equipment for Nondestructive Testing, (ASTM International. West Conshohocken. PA. 2011). wwwastmorgGoogle Scholar
- 27.J. E. Muelaner, Gage repeatability and reproducibility, in An Excel Spreadsheet (2014). http://wwwmuelanercom/quality-assurance/gage-r-and-r-excel/Google Scholar
- 28.Guidance for Industry and FDA Staff–Information for Manufacturers Seeking Marketing Clearance of Diagnostic Ultrasound Systems and Transducers, 2008. http://wwwfdagov/RegulatoryInformation/Guidances/ucm070856htm.Google Scholar