Body electrical impedance measurements: Body fat or body fluid?

Research output: Contribution to journalConference articlepeer-review

2 Scopus citations


An electrical impedance measuring scale (Tanita Model TBF-551) was used to make repeated estimations of the body fat of an adult male subject undergoing dietary changes that resulted in a 4.7 kg weight increase. The results showed that the body fat decreased approximately 3 kg with the weight gain. Over a period of five days of normal diet and activity the body fat change returned to the control condition. It appeared the weight gain was caused mainly by fluid changes not a body fat increase. The results suggest serious errors can occur in body fat estimates based on body impedance measurements, but use as a fluid change indicator may be possible.

Original languageEnglish (US)
Pages (from-to)1746-1747
Number of pages2
JournalAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
StatePublished - 2002
EventProceedings of the 2002 IEEE Engineering in Medicine and Biology 24th Annual Conference and the 2002 Fall Meeting of the Biomedical Engineering Society (BMES / EMBS) - Houston, TX, United States
Duration: Oct 23 2002Oct 26 2002


  • Body fat
  • Body fluid
  • Electrical impedance


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