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ELECTRIC FIELDS AND BONE LOSS OF DISUSE

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JAMES H. McELHANEY, RICHARD STALNAKER, ROBERT BULLARD · 1968

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Electric fields prevented bone loss in immobilized rats but caused tumors in 44% of treated bones.

Plain English Summary

Summary written for general audiences

Researchers applied electric fields to immobilized rat legs for 28 days to test whether electrical stimulation could prevent bone loss from disuse. The electric field treatments successfully reduced bone weight loss and cortical area reduction compared to untreated controls. However, 8 bone tumors developed in the 18 treated femurs, while no tumors appeared in the control group.

Why This Matters

This 1967 study reveals a troubling pattern that continues to surface in EMF research: beneficial effects often come with unexpected risks. While electric fields showed promise for preventing bone deterioration during immobilization, the 44% tumor rate (8 tumors in 18 treated bones) raises serious safety concerns that cannot be ignored.

The reality is that electromagnetic fields can stimulate biological processes in ways we don't fully understand. This research demonstrates why we need comprehensive safety testing before embracing EMF-based medical treatments. The bone-protective effects might seem promising, but the tumor development suggests these fields triggered cellular changes beyond their intended therapeutic target. What this means for you is that any technology promising health benefits through electromagnetic stimulation deserves careful scrutiny of both the benefits and the risks.

Exposure Information

Specific exposure levels were not quantified in this study.

Cite This Study
JAMES H. McELHANEY, RICHARD STALNAKER, ROBERT BULLARD (1968). ELECTRIC FIELDS AND BONE LOSS OF DISUSE.
Show BibTeX
@article{electric_fields_and_bone_loss_of_disuse_g3765,
  author = {JAMES H. McELHANEY and RICHARD STALNAKER and ROBERT BULLARD},
  title = {ELECTRIC FIELDS AND BONE LOSS OF DISUSE},
  year = {1968},
  
  
}

Quick Questions About This Study

Yes, this study found that electric field treatments significantly reduced both bone weight loss and cortical area reduction in immobilized rat legs over 28 days compared to untreated controls.
Eight bone tumors developed in the 18 femurs treated with electric fields, representing a 44% tumor rate. No tumors were observed in the untreated control group.
The electric field treatments were applied continuously for 28 days using plaster casts embedded with electric field generating plates on the immobilized rat legs.
Electric field treatments specifically improved bone weight retention and cortical area preservation. The study also measured ultimate strength, elasticity, hardness, and other parameters in the comparison.
No, this was an animal study using 48 male rats. The electric fields were applied to immobilized rat legs, not human subjects.