Results 261 to 270 of about 36,222 (310)
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Reliability for multiple frequency bioelectric impedance
American Journal of Human Biology, 1994AbstractMultifrequency impedance may help to quantify body fluid compartments and levels of hydration among individuals. Most studies of bioelectric impedance use impedance machines operating at a frequency of 50 kHz, and observer error is low. The present study evaluates multifrequency impedance measurements at 15 frequencies from 5 to 1,300 kHz to ...
Wm Cameron, Chumlea +4 more
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Segmental bioelectrical impedance analysis
Current Opinion in Clinical Nutrition and Metabolic Care, 2012Bioelectrical impedance analysis is a popular, noninvasive and practical method for assessment of body composition. The last decade has seen the development of impedance analyzers designed to assess the composition of body segments as well as the whole body.
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Design of the portable instrument for bioelectrical impedance
2016 9th International Congress on Image and Signal Processing, BioMedical Engineering and Informatics (CISP-BMEI), 2016Bioelectrical impedance is a body's important parameter, which, to a certain degree, reflects the physiological state of the human body. According to the shortage that traditional five-segments model of human body impedance can't satisfy the needs of figuring out human trunk subdivision impedance, the exiting solution of eight-segments bioelectrical ...
Bo Chen 0007 +3 more
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Bioelectrical impedance measurement: Errors and artifacts
Journal of Renal Nutrition, 1999Bioelectrical impedance analysis (BIA) allows simple noninvasive estimation of body water, and it could potentially be a very useful technique for clinical monitoring and study of abnormalities of body water. It has been shown that the total body impedance is dominated by the arm (46%) and leg (44%). The trunk, which represents an average of 46% of the
B R, Di Iorio +2 more
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Bioelectrical impedance analysis in the assessment of sarcopenia
Current Opinion in Clinical Nutrition & Metabolic Care, 2018Bioelectrical impedance analysis (BIA) is an accepted technique to estimate low muscle mass for sarcopenia diagnosis. However, muscularity assessment from BIA relies on prediction equations, estimating different compartments according to the calibration method. Low muscle mass can be defined using different approaches.There is a lack of standardization
M Cristina, Gonzalez +2 more
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Measurement of Hand Volume by Bioelectrical Impedance Spectroscopy
Lymphatic Research and Biology, 2012Assessment of lymphedema is frequently based upon measuring the increase in volume of the affected region compared to that of a comparable unaffected region. This requires methods that can measure the volume of body regions that are not only accurate and sensitive but also suitable for use in clinical practice.
Ward, L. C. +2 more
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Changes in bioelectrical impedance during fasting
The American Journal of Clinical Nutrition, 1988Six obese females had daily measurements of bioelectrical impedance during a 2-wk fast and measurement of total body water (TBW) by deuterium oxide dilution before and at the end of the fast. The three related measures of resistance (R), reactance (Xc), and impedance (Z) were found to follow very similar patterns throughout the fast, increasing for the
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Determination of Intracellular Water by Multifrequency Bioelectrical Impedance
Annals of Nutrition and Metabolism, 1995Body composition was measured in 57 healthy males by 40K measurements and by multifrequency bioelectrical impedance. Intracellular resistance (Ricf) was calculated from the impedance values using the Cole-Cole model. From total body potassium, intracellular water (ICW) was calculated.
DE LORENZO, ANTONINO +3 more
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[The role of bioelectrical impedance in peritoneal dialysis].
Giornale italiano di nefrologia : organo ufficiale della Societa italiana di nefrologia, 2013Dialysis must control the bodys fluid content accurately in order to maintain optimal health. Determination of body hydration and nutritional status are significant problems in dialysis patients. In practice, clinical evaluation is usually used to estimate the ultrafiltration target, since accurate knowledge of dry weight is lacking.
Lentini, Paolo +8 more
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Bioelectrical impedance and body composition assessment.
Malaysian journal of nutrition, 1998Bioelectrical impedance (BIA) has become increasingly popular in recent years in the assessment of body composition and body fluid status. The level of interest in this technique is related to the following advantages: it is non-invasive, inexpensive, portable and requires minimal subject compliance.
Hills, Andrew P., Byrne, Nuala M.
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