Alrgiht, seeing someone's swim HR post reminded me I wanted to ask about this. I started becomming active in HS by joining XC. I moved into rowing in college, and found triathlon about halfway through. I have always been much stronger on the run leg than the others. I have not actually done LT tests to set my HR zones, I just kinda base it mostly off percieved exertion and note where my HR sits at different "effort levels" to estimate my zones.
Anyways, I was doing a 60 minute run the other day at just over 8min/mile and was feeling pretty strong. However, by about the 30 minute mark my HR hit 170 and stayed above until the end of the workout. Now I was slowly increasing speed throughout, but my HR finished at around 180. My avg HR was 167 for the run with peak at 183. The thing is, I felt like this was a relatively easy run.
This is usually the case for all my runs.
So I guess my question is...is it healthy for me to feel comfortable running in 170+ HR for upwards of an hour? Am I at risk of my heart exploding or something, lol?
I used to always just assume that my zones were just shifted since I am larger than the average runner of my speed (6ft 205-210lbs with sub 19:30 5k), but this shift seems kind of extreme.