THE EFFECT OF SHORT WAVE DIATHERMY UPON DIGITAL CIRCULATION AS DETERMINED BY MICROPLETHYSMOGRAPHY
Bruce B. Grynbaum, Raymond S. Megibow, William Bierman · 1950
1950 study used precise blood flow measurements to investigate how medical RF heating affects human finger circulation.
Plain English Summary
Researchers in 1950 used a specialized blood flow measuring device to study how short wave diathermy (a form of radiofrequency heating used in physical therapy) affects circulation in human fingers. They tested 10 healthy people to settle debates about whether this RF heating treatment actually improves blood flow in extremities.
Why This Matters
This early study represents one of the first attempts to scientifically measure RF radiation's effects on human circulation using precise instruments. While diathermy uses much higher power levels than modern wireless devices, the research established important precedents for studying RF bioeffects on vascular function. The science demonstrates that electromagnetic fields can measurably alter blood circulation patterns, a finding that remains relevant as we consider how everyday RF exposures from phones and WiFi might affect our cardiovascular system. What makes this particularly significant is that researchers were already documenting 'controversial discussion' about RF health effects in 1950, showing these concerns have deep scientific roots spanning over seven decades.
Exposure Information
Specific exposure levels were not quantified in this study.
Show BibTeX
@article{the_effect_of_short_wave_diathermy_upon_digital_circulation_as_determined_by_mic_g7099,
author = {Bruce B. Grynbaum and Raymond S. Megibow and William Bierman},
title = {THE EFFECT OF SHORT WAVE DIATHERMY UPON DIGITAL CIRCULATION AS DETERMINED BY MICROPLETHYSMOGRAPHY},
year = {1950},
}