g.tec medical device which was used as reference device to test the accuracy of the Polar OH1 had active electrodes, which are very expensive and reduce ECG motion artifacts, still tests on the treadmill were only performed at slow speeds – PETER GAMMA (Director & Physiologist), MEDITATION RESEARCH INSTITUTE SWITZERLAND (MRIS)

Last Updated on January 2, 2023 by pg@petergamma.org

PLOS ONE paper:

Last year, we contacted the g.tec medical support concerning ECG motion artifacts. Here is the answer:

g.tec medical can minimize ECG motion artifacts using active electrodes

the g.tec medical device which we discussed here was used to validate the accuracy of the Polar OH1:

64-channel wireless g.Nautilus active electrode multipurpose device by g.tec medical with EEG & ECG

the PLOS ONE paper says, the g.tec medical they used was a device with active electrodes, which minimizes ECG motion artifacts. These devices are very expensive.

Altough the authors of the paper had a device which minimizes ECG motion artifacts and was very expensive, they had a protocol on the treadmill which the test subjects only to run at 4 km/h to 5.5 km/h

90.3 Summary of the testing protocols of different studies

in another paper on which the cardiologist Dr. Milind Desay from Cleveland Clinic in Ohio was last author, they used a protocol on the treadmill up to about 15 km/h

we do not know whether the authors of the second paper used active electrodes, we suppose not (check the paper).