Theresa Schweizer & Dr. rer. nat. Rahel Gilgen-AmmannSwiss Federal Institute of Sport Magglingen SFISM, Magglingen, Switzerland ResearchGate, August 2018 https://www.researchgate.net/publication/327261531_Accuracy_of_the_optical_heart_rate_device_Polar_OH1_during_rest_and_exercise “Considering the continuous data, 89.2% of all 10-second intervals obtained by the Polar OH1 were within 5% from the Polar H10. The Polar OH1 measured the least accurate data (76.7%) during the household chores, whereas …
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