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Hi all, I've been running for 3 years and am 39 years old. My 10k race time is 39 mins. In the last week I've tried some HR monitor training and I've had quite a shock when looking at the Garmin Connect charts. The last 4 runs I've done wearing a HR monitor my HR has gone up to between 196 and 200 BPM in the first few minutes, then it has dropped to about 145, and then remained steady at about 150 - 155 for the rest of a harder run.
I'm really quite horrified that it has gone up so high!! I guess I haven't been warming up enough and it's something I'll keep an eye on in future runs. Otherwise, I felt perfectly fine. My resting HR in the morning varies from about 39 to 43 from day to day so generally I don't have a high HR.
Has anyone else experienced this?