Effect of Short Duration Electromagnetic Field Exposures on Rat Mass

Michelle A. Sandrey, David N. Vesper, Mary T. Johnson, Gabi Nindl, John A. Swez, Jack Chamberlain, Walter X. Balcavage

Research output: Contribution to journalArticle

12 Scopus citations


Daily preexposure and postexposure mass measurements of 65 rats (young males and females, old males) were recorded during exposure to a 0.1 mT, 60 Hz sinusoidal magnetic field, a proprietary pulsed wound healing field, pulsed electromagnetic field, (PEMF), or their control fields for 4 h/day for 21 days. Statistical analysis of mass changes over time showed that young rats exposed to PEMF lost more mass and recovered it more slowly compared to controls (2-4% more loss) than did older PEMF exposed rats or any 60 Hz exposed rats. We conclude that daily preexposure and post-exposure mass measurements are needed to adequately assess the effects of electromagnetic fields on body mass.

Original languageEnglish (US)
Pages (from-to)2-6
Number of pages5
Issue number1
StatePublished - Jan 1 2002


  • 60 Hz magnetic field
  • PEMF
  • Rat mass changes

ASJC Scopus subject areas

  • Agricultural and Biological Sciences (miscellaneous)
  • Biophysics

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    Sandrey, M. A., Vesper, D. N., Johnson, M. T., Nindl, G., Swez, J. A., Chamberlain, J., & Balcavage, W. X. (2002). Effect of Short Duration Electromagnetic Field Exposures on Rat Mass. Bioelectromagnetics, 23(1), 2-6. https://doi.org/10.1002/bem.92