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For example, a group of researchers found that low HRV was an index of higher uncertainty leading to poor decision-making skills, especially those with higher levels of anxiety. [27] HRV was also used to assess decision-making skills in a high-risk game and was found to be an index higher sympathetic activation (lower HRV) when making decisions ...
There have been concerns by users of the device measuring their heart rate at a consistent and continuous level, especially when in excessively motion. [11] Many studies have assessed the accuracy levels of these wearable devices to measure and monitor heart rate and have found these devices to provide valid results to users.
More recent devices use optics to measure heart rate by shining light from an LED through the skin and measuring how it scatters off blood vessels. In addition to measuring the heart rate, some devices using this technology are able to measure blood oxygen saturation (SpO 2). Some recent optical sensors can also transmit data as mentioned above.
The Fitbit Charge 3 activity tracker. A fitness tracker or activity tracker is an electronic device or app that measures and collects data about an individual's movements and physical responses, towards the goal of monitoring and improving their health, fitness, or psychological wellness over time.
Wearable technology are devices that people can wear at all times throughout the day, and also throughout the night. They help measure certain values such as heartbeat and rhythm, quality of sleep, [citation needed] total steps in a day, and may help recognize certain diseases such as heart disease, diabetes, and cancer.
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