Validity of an acoustic method to assess whole-body hydration status

Calhoun, Mason; Utter, Alan C.; McAnulty, Steven R.; McBride, Jeffery M.; Zwetsloot, Jennifer J.; Austin, Melenie; Mehlhorn, J.; Sommerfield, Lesley M.; Tsyuryupa, Sergey; Sarvazyan, Armen

doi:10.1121/2.0000076

Cited by 1 publication

(3 citation statements)

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“…Consequently, the sensitivity of the hydration monitor should be better than the clinically relevant level of dehydration of 2%. Available data on the variations of ultrasound velocity in the human calf indicate that 2% percent of total body water loss results in a velocity increase in the range 2–3 m/s [7, 24]. Accordingly, in testing the HM device, the acceptable level of ultrasound velocity measurement error in the muscle was set as 1 m/s.…”

Section: Hm Bench Testingmentioning

confidence: 99%

“…Description of the study details is presented in [24]. The goal of the study on athletes was to test the ability of HM to track changes in total body water during periods of acute dehydration and rehydration and day-to-day and diurnal variability of hydration in elderly.…”

Section: Human Studiesmentioning

confidence: 99%

“…The test results of devices for bioelectrical impedance and conductance measurement, which are the most frequently used for water balance assessment, have significant dependence on the anthropometric features of the subject and on electrolyte balance. A study comparing bioelectrical impedance data with clinical judgment of hydration status in 103 acute geriatric hospital inpatients demonstrated that there is little concordance between the clinical and the bioelectrical evaluation of the hydration status [24]. Concordance between the results of clinical judgment and bioelectrical impedance measurements was only 43.7%.…”

Section: Introductionmentioning

confidence: 99%

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Acoustical method of whole-body hydration status monitoring

et al. 2016

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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.

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Section: Hm Bench Testingmentioning

confidence: 99%

Section: Human Studiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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