Last Updated on December 28, 2022 by pg@petergamma.org
- Rob ter Horst uses a Polar 10 ECG refererence chest strap as a reference for his YouTube reviews
- We have not studied the architecture of the Polar H10, but we suppose, that the Polar H10 is technically speaking a single lead ECG device with two electrodes. We cannot imagine that a 90 USD chest strap has more leads.
- Rob uses two Polar H10 chest straps simultaneously. This means that he makes two reference measurements for his tests at the same time. If we have understood it right, a 2 lead ECG device as for instance iWorx 214 makes also two measurements simultaneously. This can be seen for instance in the iWorx demos of the iWorx toolbox.
- Rob usually only shows the measurements of one of his Polar H10 devices in his plots. Rob does not publish averages of his two Polar H10 chest straps.
- If we have understood it right, if Rob would use 3 Polar H10 chests straps simultaneously, he would also have 3 independent measurements as a 3 lead ECG device has, but Rob does not do this.
- We do not know of any scientific papers which uses Robs setup to validate the accuracy of sports sensors.
- We do not know how high the sampling rate of the Polar H10 chest strap is.
- In a paper of the Swiss Federal Institute of Sports in Magglingen, the accuracy of the Polar H10 was tested. They found, that it was more accurate than a 3 lead ECG devices with activities with strong body movements.
- We suppose that the Polar H10 has algorithms integrated to remove ECG noise and motion artifacts.
- We do not know of any 3 lead ECG devices which use ECG noise and motion artifacts by default. HeartPy for instance offers such algorithms. HeartPy can be downloaded and tested.
- The Adinstruments Equivital with LabChart software is ECG noise and motion artifact free, but is only a 2 lead ECG device. We still suppose that this device is the most accurate device during sporting activities with strong body movements, but nobody published tests about it.
- If the Adinstruments Equivital with LabChart software is not the most accurate device also during sporting activities with strong body movements, we are convinced that Adinstruments offers support to us to solve this problem, a software which costs this much, we are convinced that it has has this option.
- Rob furthermore does not publish his testing protocols. How long did he cycle at what speed? This makes it impossible to reproduce his results.
- Rob defines himself as the Quantitative Scientist, but he does not publish any quantitative data about his sports sensor validations.
- Rob often gives relative statements about his sensors which compares those to each other, but publishes no absolute values.
- Rob often shows plots which compare devices which are very helpful.
- All the same, we miss numerical and statistical accuracy validation data of most of the sports sensors in the form of a scientific publications which can be cited.