Last Updated on July 25, 2022 by pg@petergamma.org

For sports sensor accuracy validation studies

The scientific paper:

Rahel Gilgen-Ammann, Theresa Schweizer, Thomas Wyss, Eur J Appl Physiol. 2019 Jul;119(7):1525-1532.,

RR interval signal quality of a heart rate monitor and an ECG Holter at rest and during exercise

https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&cad=rja&uact=8&ved=2ahUKEwiKos3IhuH4AhWF_bsIHfGlD2kQFnoECAIQAQ&url=https%3A%2F%2Fwww.ppdb.ehsm.ch%2Finf2%2Frm%2Ff.php%3Ff%3D20200416162130_5e9869eab833b.pdf%26n%3DGilgenAmmann_RRIntervalSignalQuality_2019.pdf&usg=AOvVaw23MOAobT8so8HFGAdgdcPo

used a

AR12plus Holter ECG device:

https://www.medicaldevicedepot.com/Medilog-AR12-Plus-p/1.35001.htm

and compared it to a Polar H10 chest strap

Specifications of the AR12plus:

– sampling rate of the AR12plus is 12 bit (research grade devices have 16 bit )

– 3 ECG channels (3 ECG leads)

– 7 ECG electrodes

– costs 1700 USD

The iWorx IX-214R:

– has a sampling rate of 16 bit

– has only 2 channel ECG:

The iWorx IX-TA-220 Recorder:

IX-TA-220 Recorder with Integrated Sensors

• can be connected to an iWire-ECG12 12-Lead ECG Recording Module:

iWire-ECG12 12-Lead ECG iWire Recording Module

• this is basically as a 4 channel 12-Lead ECG with 16 bit sampling rate for a view thousand dollars.

but you can also:

1. take a Rasperri PI 4 with stackable DAQ HAT with a sampling rate of 16 bit:

Solution for Open Friendly & Community Driven Developers

2. add 4 x ECG modules with AD8232 as Dr. Scott Hardens, PhD. did in his Sound Card ECG:

3. The following paper compares the accuracy of a sound card ECG to a “gold standard” Biopac device:

Validation of PC-based Sound Card with Biopac for Digitalization of ECG Recording in Short-term HRV Analysis

The accuracy of a Sound Card ECG compared to Biopac ECG device is: 98 – 99 %

4. Add HeartPy for ECG motion artifact removal:

HeartPy – Python Heart Rate Analysis Toolkit can also be used for noisy ECG data

With this setup, whe get a 4 channel 12 electrode ECG device with an accuracy which is hard to beat for 280 USD.