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CHANGES IN BLOOD FLOW, OXYGEN UPTAKE AND TISSUE TEMPERATURES PRODUCED BY THERAPEUTIC PHYSICAL AGENTS: II. EFFECT OF SHORT-WAVE DIATHERMY

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David I. Abramson, M.D., Yvonne Bell, B.S., Harib Rejal, B.S., Samuel Tuck, Jr., B.S., Carolyn Burnett, B.S., and Clara J. Fleischer, M.D. · 1960

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1960 medical research proved radiofrequency fields cause measurable changes in human blood flow, oxygen consumption, and tissue temperature.

Plain English Summary

Summary written for general audiences

This 1960 research by Dr. Abramson studied how short-wave diathermy (a radiofrequency medical treatment) affects blood circulation, oxygen consumption, and tissue heating in the human body. The study examined the physiological changes that occur when therapeutic RF energy is applied to human tissue. This early research helped establish how electromagnetic fields interact with biological systems for medical purposes.

Why This Matters

This foundational research from 1960 represents some of the earliest systematic investigation into how radiofrequency electromagnetic fields affect human physiology. What makes this study particularly relevant today is that it documented measurable biological effects from RF exposure in controlled medical settings. The science demonstrates that electromagnetic fields can produce significant changes in blood flow, oxygen uptake, and tissue temperature - fundamental biological processes that affect cellular function.

The reality is that if therapeutic RF devices could produce these documented physiological changes in 1960, we should take seriously the potential for similar biological effects from today's ubiquitous wireless devices. While medical diathermy uses higher power levels than consumer electronics, this research established that RF fields interact with human biology in measurable ways. You don't have to accept industry claims that non-ionizing radiation has no biological effects when decades-old medical research proves otherwise.

Figures from the Original Paper

Diagrams extracted from the original research document.

graphPage 3 - AI-described figure: Fig. 1: Curves of oxygen arteriovenous difference, blood flow and oxygen uptake obtained from the forearm of subject L.G., during and after 30 minutes of short-wave diathermy.
chartPage 4 - Fig. 2: Curves representing changes in skin, subcutaneous tissue and muscle temperatures obtained from the forearm of subject A.G., during and after 30 minutes of short-wave diathermy.

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 27.12 MHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 27.12 MHzPower lines50/60 HzCell phones~1 GHzWiFi2.4 GHz5G mm28 GHzLogarithmic scale

Specific exposure levels were not quantified in this study. Duration: 30 minutes

Study Details

To determine changes in local circulation, tissue temperature and oxygen uptake during and after application of short-wave diathermy to the forearm

Fourteen experiments were performed on the forearm of 14 normal male subjects. Blood flow, tissue te...

Application of short-wave diathermy produced a definite increase in blood flow, with an average peak...

The use of clinical dosages of short-wave diathermy elicits a definite and prolonged increase in blood flow and tissue temperatures, the greatest thermal effect being noted in the muscle. Such results do not support the contention that shorter electromagnetic waves are relatively more effective for raising the temperature in superficial tissues than in deep tissues. The finding of an associated elevation in oxygen uptake is in accord with the clinical view which considers the presence of an impaired local arterial circulation a contraindication to the use of short-wave diathermy.

Cite This Study
David I. Abramson, M.D., Yvonne Bell, B.S., Harib Rejal, B.S., Samuel Tuck, Jr., B.S., Carolyn Burnett, B.S., and Clara J. Fleischer, M.D. (1960). CHANGES IN BLOOD FLOW, OXYGEN UPTAKE AND TISSUE TEMPERATURES PRODUCED BY THERAPEUTIC PHYSICAL AGENTS: II. EFFECT OF SHORT-WAVE DIATHERMY.
Show BibTeX
@article{changes_in_blood_flow_oxygen_uptake_and_tissue_temperatures_produced_by_therapeu_g5863,
  author = {David I. Abramson and M.D. and Yvonne Bell and B.S. and Harib Rejal and B.S. and Samuel Tuck and Jr. and B.S. and Carolyn Burnett and B.S. and and Clara J. Fleischer and M.D.},
  title = {CHANGES IN BLOOD FLOW, OXYGEN UPTAKE AND TISSUE TEMPERATURES PRODUCED BY THERAPEUTIC PHYSICAL AGENTS: II. EFFECT OF SHORT-WAVE DIATHERMY},
  year = {1960},
  
  
}
No DOI on file for this study.

Quick Questions About This Study

Short-wave diathermy is a medical therapy that uses radiofrequency electromagnetic fields to heat deep tissues for treating muscle pain, arthritis, and other conditions. It operates by directing RF energy into the body to increase blood circulation and promote healing.
Researchers measured three key physiological responses: changes in blood flow through tissues, oxygen consumption by cells, and temperature increases in treated areas. These measurements provided objective evidence that RF fields produce measurable biological changes in human subjects.
This early research established that radiofrequency fields can produce measurable biological effects in humans, contradicting claims that non-ionizing radiation has no biological impact. It demonstrates that electromagnetic fields interact with fundamental physiological processes like circulation and cellular metabolism.
The research focused on three interconnected biological systems: the cardiovascular system (blood flow), cellular metabolism (oxygen uptake), and thermoregulation (tissue temperature). These represent fundamental processes that affect overall cellular health and function throughout the body.
While medical diathermy uses higher power levels than consumer electronics, both involve radiofrequency electromagnetic fields interacting with human tissue. This 1960s research proves that RF fields can produce biological effects, establishing scientific precedent for investigating lower-level chronic exposures.