Qardio QardioCore, Руководство пользователя

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be able to find out if parts of the heart are too large or
are overworked. During an ECG, several sensors, called
electrodes, capture the electrical activity of the heart.
Wearing QardioCore during exercise
During exercise the body requires more oxygen.
As the level of physical activity increases, the heart has
to work harder to deliver more oxygen-rich blood to
the exercising muscles, so the heart beats faster. By
monitoring the electrical signals of the heart as it beats
faster, it is often possible to detect coronary problems
that cannot be seen when the body is at rest. As the
intensity of the exercise increases, your heart rate
will increase. You should stop your physical exercise
if you experience dizziness, fatigue, chest pain, or
other symptoms. Normally you should maintain your
heart rate below your target level (85% of a predicted
maximum heart rate, based on your age, and your any
known medical conditions). You should consult your
doctor before exercising and about your target
heart rate level.
Target heart rate
While using QardioCore, the Qardio App displays
the current heart rate and the target heart rate
during recording, in the overview area.
The target heart rate can be adjusted at any time in
the settings
You can either set the target heart rate directly, or set
it as a percentage of the predicted maximum heart
rate. By default, the target heart rate value is set as
85% of the predicted maximum HR.
The predicted maximum heart rate is calculated with
the following formula: Predicted Maximum Heart
Rate = (220 – user’s age in years).
Heat rate detection method
1. ECG signal is filtered with a set of filters to
amplify QRS parts of the signal and detect QRS