Effects of orthostatic fluid shifts on bioelectrical impedance measurements

A. Lozano-Nieto, A. A. Turner

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


This study analyzes the effect of orthostatic fluid shift caused by body postural changes on the reliability and stability of bioelectrical impedance. It has been found that following a fluid distribution perturbation caused by postural changes, impedance values change for a period of time that can be longer than the measurement time. Based on these preliminary measurements, it is recommended that new measurement protocols for bioelectrical impedance be developed in order to minimize perturbations on existing fluid distribution, thus increasing the reliability of bioelectrical impedance data.

Original languageEnglish (US)
Pages (from-to)249-258
Number of pages10
JournalBiomedical Instrumentation and Technology
Issue number4
StatePublished - Aug 14 2001

All Science Journal Classification (ASJC) codes

  • Biomedical Engineering
  • Computer Networks and Communications


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