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Oura's workout heart rate measurement during exercise does not (as of summer 2022) match the measurement accuracy of wearable heart rate sensors like the Polar H10. [42] The ring must be very tight on the finger for the Oura Ring to measure workout heart rate.
Early models consisted of a monitoring box with a set of electrode leads which attached to the chest. The first wireless EKG heart rate monitor was invented in 1977 by Polar Electro as a training aid for the Finnish National Cross Country Ski team. As "intensity training" became a popular concept in athletic circles in the mid-80s, retail sales ...
Polar Electro Oy (commonly known as Polar) is a Finnish manufacturer of sports training computers, particularly known for developing the world's first wireless heart rate monitor. [ 1 ] The company is based in Kempele , Finland and was founded in 1977.
Visualization of the ice and snow covering Earth's northern and southern polar regions Northern Hemisphere permafrost (permanently frozen ground) in purple. The polar regions, also called the frigid zones or polar zones, of Earth are Earth's polar ice caps, the regions of the planet that surround its geographical poles (the North and South Poles), lying within the polar circles.
The Polar Code applies to ships operating in Polar Waters. The Polar Code stems from previous IMO documents, including voluntary guidelines in both 2002 [5] and 2010. [6] As part of ongoing international work on the Polar Code, an IMO Workshop on the code's Environmental Aspects was held in Cambridge, United Kingdom, in September 2011.
The best-known source of caffeine is the coffee bean, the seed of the Coffea plant. People may drink beverages containing caffeine to relieve or prevent drowsiness and to improve cognitive performance. To make these drinks, caffeine is extracted by steeping the plant product in water, a process called infusion.
Every month a polar climate has an average temperature of less than 10 °C (50 °F). Regions with a polar climate cover more than 20% of the Earth's area. Most of these regions are far from the equator and near the poles , and in this case, winter days are extremely short and summer days are extremely long (they could last for the entirety of ...
Hydrazoic acid, also known as hydrogen azide, azic acid or azoimide, [2] is a compound with the chemical formula HN 3. [3] It is a colorless, volatile, and explosive liquid at room temperature and pressure.