Note: This study found no significant biological effects under its experimental conditions. We include all studies for scientific completeness.
Calcium-ion movement and contractility in atrial strips of frog heart are not affected by low-frequency-modulated, 1 GHz electromagnetic radiation.
Schwartz JL, Mealing GA · 1993
View Original AbstractFrog heart tissue showed no immediate changes from 32-minute RF exposure, but this doesn't establish long-term cardiac safety in humans.
Plain English Summary
Researchers exposed frog heart tissue to 1 GHz radiofrequency radiation (similar to cell phone frequencies) for 32 minutes at various power levels to see if it affected calcium movement and heart muscle contractions. They found no changes in either calcium flow or the heart muscle's ability to contract, even at the highest exposure levels tested. This suggests that short-term RF exposure at these frequencies may not directly disrupt basic heart muscle function.
Study Details
To investigate the effects of AM or CW modulated 1 GHz exposure on calcium efflux and contractile force of isolated atrial muscle stripes of frog heart in vitro.
Calcium efflux from electrically stimulated, 45Ca(2+)-preloaded atrial strips of the frog heart was ...
Neither unmodulated nor 0.5 Hz or 16 Hz modulated 1 GHz waves affected the movement of calcium ions ...
Show BibTeX
@article{jl_1993_calciumion_movement_and_contractility_3385,
author = {Schwartz JL and Mealing GA},
title = {Calcium-ion movement and contractility in atrial strips of frog heart are not affected by low-frequency-modulated, 1 GHz electromagnetic radiation. },
year = {1993},
url = {https://pubmed.ncbi.nlm.nih.gov/8297396/},
}