Last Updated on September 4, 2022 by pg@petergamma.org

https://www.mindtecstore.com/biosignalsplux-Solo-Run-Kit-with-one-sensor

After we gained clarity about the definition of ECG electrodes, leads and channels, we are coming back to this device. Altough it is only a single lead ECG device, there is a biosignalsplux Professional Sensor for Electrocardiography (ECG) included, designed for “improved user acceptability “:

https://www.mindtecstore.com/biosignalsplux-Professional-Sensor-Electrocardiography-ECG

• It is only a single lead device

• but it has three ECG electrodes

• and one channel of ECG

Therefore we accept this device. Unfortunately, there is contradictory information. The Mintec store says it has 12-bit resolution. In the Biosignals Plux Store it has a similar device, the “Solo kit” without ECG sensor included:

Solo Kit

• according to the info from the PLUX store, this device has a sampling rate up to 16-bit per channel

• After we have read the Paper of the Swiss Federal Insitute of Sports about Holster ECG devices, we doubt, whether the “Solo Run Kit” is designed for runners which run at speeds above 15 km/h. The same applies to the “Solo Kit”.

• According to the protocols we looked at from the papers which tested sports sensors with ECG reference devices, they reported no problems for running activities up to the following speeds:

– Running with a speed up to 5.5 km/h [90.8.6]

– Running with a speed up to 9.65 km/h [90.8.3]

– Running with a speed up to 11km/h [90.8.1]

– Running with a speed up to 14.48 km/h [90.8.5]

90.3 Summary of the testing protocols of different studies

• There is no validation paper available for the Solo or the Run kit device

• but according to the PLUX store it has a sampling rate of up to 16 bit which is research grade

• OpenSignals (r)evolution software can be connected to the device and has a LabStreamingLayer interface

• one or several devices can be connected over LSL

• The OpenSignals (r)evolution software HRV add on works with these devices, which has some motion artifact removal options:
• costs USD 395

Heart Rate Variability (HRV) Add-on

• but also HeartPy should work with this device:

https://scholar.google.com/citations?user=OOhuA6gAAAAJ&hl=de&oi=sra

• OpenSignals for Windows or Linux allows raw data recording which can be processed further
• OpenSignals desktop versions have LabStreamingLayer interface for real-time processing.
• OpenSignals Android app allows recording to Android phones

• HeartPy is eventually for motion artifact removal than the HRV add on, since it was developed for the analysis of noisy signals, according to the following information, HeartPy works also for “very noisy” ECG signals:

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