Evening all,

Just completed my first heart rate drift test. My average heart rate over the course of a little over an hour was 155bpm. My percentage ended up being .67%, so I was obviously under my threshold by a decent margin. There was no elevation gain on the trail and the gps appears to have been accurate. I was using a Polar H10 strap in conjunction with a Forerunner 245. Does anyone have any suggestions as to what my aerobic threshold would be or was I too far off to really make a guess.

Worth noting, I chose my heart rate based on being able to breathe through my nose for an extended period of time as well as being able to speak a full sentence without breathing interrupting. Had I been at say 160bpm, I would not have been able to speak full sentences as easily. I guess as a newish runner I’m just struggling to figure out what a “comfortable” pace is. I do a lot of high altitude hiking in the summer, but this past month is when I have transitioned into running.

Any insight is much appreciated and I can provide any other details or data I may have left out.