Is it possible that the circumference of one's arm has a bearing on the precision of the hrm data? The arm sensor must be under the elbow so that it is facing out to your side so the usb can detect your arm movement and the heart rate sensor must be near enough to a vein or artery to detect arterial blood flow. What if your arm is too skinny to be in a position as to detect both measurements?
Also- what about elbow/arm movement as it affects the hrm? Is it possible that the sensor loses contact or readings if the elbow is bent?
Wish EASA2 would have opted for the chest hrm. I think these issues would have been averted.|||I have to agree with you. I have seen some funny readings on this and still go by my HRM|||Agree also, lately on some of the running exercises I've noticed my hr on the screen was significantly lower than it should have been. Its cool though, overall does a good job.
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