Last night I did a 5K race, which is part of a series, I also did one in June.
In June it was happened over an unusually warm period, Garmin reported 22C at 7:30PM. I clocked around 18:35 (pretty close to my PB) with an average HR of 172 and max of 182. Those HRs align with what I’m generally see.
Last night Garmin reported it at 26C and I did 19:09 with an average HR of 180 and max 188, so around 8 beats higher.
So, was that due to:
a) The heat?
b) The magnetic race number pins I used for the first time interfering with chest HRM?
c) COVID - I had a weekend away with the lads, one of feeling rough and has since tested positive. I’m currently feeling fine (well I thought I was) and testing -ve.
d) Something else
Have you ever seen HR of 188 before?
Ever seen a HR between 182 and 188?
If you’ve never been over 182 then 188 seems slightly too much of a jump to be real to me? But if it’s only a couple beats higher than what you think your max is then I’d vote for heat +/- possible covid - my HR was 10 beats high throughout ironman.
I guess I was thinking my max was my max and in the heat I’d have to effectively reduce physical exertion to balance the equation, which I did to a degree (slower time), but the equation didn’t balance (normal max was exceeded). But I guess I now realise my max is my max under normal conditions (e.g. weather, fitness, fatigue and illness).