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Etude de la composition corporelle par impédancemétrie sur des adultes et des enfants sains et pathologiques.

Abstract : Measurements of body composition permits the monitoring of water volumes, of the rate of hydration, as well as fat mass, muscle mass and body cell mass. Bioimpedance is a very convenient tool as it is non-invasive, painless and inexpensive. Our goal was to develop new functionalities for a prototype foot-to-foot impedancemeter, in order to bring additional tools to the medical staff. To this effect, we have studied populations of children and adults, healthy and pathological. We have used a multifrequency medical impedancemeter, a prototype foot-to-foot impedancemeter permitting to obtain fat mass, low and high frequency resistances, and Dual energy X-Ray absorptiometry. We have developed for this prototype equations giving extracellular and total body water volumes, in addition to lean body mass. We have also confirmed the importance of parameters such as the phase or body cell mass for monitoring malnutrition or proposed new indices such as the ratio of extracellular resistance to infinite resistance. We have also demonstrated the reliability of impedancemetry for monitoring excess water and associated therapies.
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Submitted on : Wednesday, May 28, 2008 - 11:40:59 AM
Last modification on : Thursday, January 11, 2018 - 6:17:20 AM
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M.V. Moreno. Etude de la composition corporelle par impédancemétrie sur des adultes et des enfants sains et pathologiques.. Sciences de l'ingénieur [physics]. Université de Technologie de Compiègne, 2007. Français. ⟨tel-00282690⟩

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