Last Updated on August 17, 2023 by pg@petergamma.org
The following paper says:
https://pubmed.ncbi.nlm.nih.gov/31004219/
«A simple chest strap such as the Polar H10 might be recommended as the gold standard for RR interval assessments if intense activities with strong body movements are investigated.»
ECG devices are known to have problems with ECG movement artifacts. The g.tec medical support wrote us a while ago, that they do not now of a manufacturer who has solved the problem of ECG movement artifacts. But Adinstruments says their Adinstruments Equital with LabChart software is free from ECG movement artifacts. Adinstruments shows us here a demo video of a man who is running with an Equivital belt:
And is this man not running faster than 15 km/h?
About 15 km/h was previously the speed limit cardiologists from the Cleveland Clinic in Ohio had in their tests where they tested consumer grade heart rate monitors with a clinical grade 3 lead ECG device:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6732081/
If the man in the video above runs more than 15 km/h, then Adinstruments would have solved the problem of ECG motion artefacts somehow, and demonstrates us this. But the question is, how did Adinstruments solve this problem, and how good did they solve it? We do not know of any scientific papers who studied this, at least not papers who used the Adinstruments Equivital with the Adinstruments LabChart software. The Equivital sensor belt has only 2 ECG channels and a analog to digital conversion rate of 10 bit for ECG. The Cyton board we mentioned before has 24 bit ADC and 3 ECG channels
In the HeartPy documentation it says, HeartPy can handle with very noisy ECG signals.
The AR12 plus Holter ECG cannot handle with noisy ECG signals at all, which results in poor data as compared to a Polar H10 chest strap, what has been shown in a paper reviewed by Rob ter Horst:
But it would be interesting to see how good our 3 lead ECG Cyton device with HeartPy is in handling with noisy ECG signals:
and how good it is compared to a Polar H10 chest strap for instance for runs on a treadmill. We suppose that it is better than a 3 lead AR12 plus Holter ECG which was tested in the above paper, a device which cannot handle with noisy ECG signals at all.
And is the device we introduced here combined with the knowledge and the possibilities which currently are available to handle with noisy ECG signals:
as accurate as a Polar H10 chest strap or even more accurate, also if intense activities with strong body movements are investigated? The Cyton with 3 lead ECG, or a device from another manufacturer? We invite device manufacturers to challenge Rob ter Horst on YouTube with their devices. And we would be happy if such a device which is as accurate or more accurate than the Polar H10 is available sooner or later. Not only on YouTube, but also in scientific papers, where the accuracy of the device hae been proven.