The rhythm is regular at a rate of 130 beats/min. A P wave occurs before each QRS complex (+) with a stable PR interval (0.14 sec). The P wave is positive in leads I, II, aVF, and V4-V6. This is a ...
We’ve been using it up against a Garmin watch with the latest ... and Polar H9 chest strap (right) Digging into the heart rate tracking performance and during workouts like outdoor and indoor ...