Polar Electro Oy

Mika Rahja

Olli Komulainen

Pekka Rytky

Lauri Lumme

Elias Pekonen

Seppo Korkala

Tero Posio

Harri Määttä

Topi Korhonen

Jonna Puurunen

Tuomas Hartikainen

Matti Orava

Katri Loukusa

Daniela Olstad

There is provided a wearable device for measuring cardiac activity of a user, the wearable device comprising: an optical cardiac activity sensor unit configured to be placed in contact with a measurement area and to enable cardiac activity measurement of the user to obtain a cardiac activity signal; a plurality of electrodes configured to enable bioimpedance measurement on the measurement area to obtain a bioimpedance signal; a detector unit for detecting changes in the bioimpedance signal; and a reducer unit for reducing a motion artefact effect on the cardiac activity signal based on the detected changes in the bioimpedance signal.

Enhancing optical cardiac activity measurement

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Oulu, Finland

Mika Rahja