# Simultaneous physiological measurements with five devices at different cognitive and physical loads
Authors: Marcus Vollmer, Dominic Bläsing, Anja Buder, Julian Elias Reiser, Maria Nisser
This study sample consisted of a cohort of 13 participants (seven female and six male volunteers)
measured in December 2017 at the Leibniz-Institute for Labour Research at the Technical University of Dortmund, Germany.
For the purpose of investigating the functionality, accuracy, and usability of several ECG-measurement devices,
the participants were equipped with five sensor systems at the same time.
Three clinically certified devices were used:
NeXus-10 MKII (Mind Media, Germany)
eMotion Faros 360° (Mega Electronics Ltd., Finland)
SOMNOtouch NIBP (SOMNOmedics GmbH, Germany)
In parallel, two consumer products were attached:
Hexoskin Hx1 (Carré Technologies Inc., Canada)
Polar RS800 Multi (Polar Electro Oy, Finland)
After participants were equipped with all measurement devices, four tasks at different cognitive and physical load needed
to be performed consecutively:
Five minute resting period baseline while standing upright on the treadmill
Five minute walking on the treadmill at a moderate speed (1.2 m/s)
Five minute cognitive auditive 2-back task while standing still on the treadmill
Five minute uphill walking on the treadmill (15% track inclination, 1.2 m/s)
The experiment was conducted in line with the Declaration of Helsinki and written informed consent was signed.
The study was approved by the ethics committee of the University of Greifswald (Identifier: BB 171/17).
Please see https://physionet.org/ for more details on this data set.
License (for files):
Creative Commons Attribution 4.0 International Public License
Dr. rer. nat. Marcus Vollmer
Institute of Bioinformatics, University Medicine Greifswald
DZHK (German Centre for Cardiovascular Research), partner site Greifswald