I've been running the last two days in the heat ( 70 degrees) which is quite a change from the 40-50 degree weather. The HR monitor seems to crank up about 10 beats more than my usual HR in the same setting. Is this the heat factor that I am not used to yet?
Should be.
I'm no HR wiseman though.
I'm no HR wiseman though.
10 beats seems like quite a jump, but it's entirely possible. I know that once it gets hot here, that I'll have to slow my pace to maintain the same HR.
Factors Affecting Heart Rate
Heart rate increases at high temperatures. Your heart rate is higher when running on a hot day. As the temperature increases from 60 degrees to 75 degrees, a runner s heart rate at a given speed increases by about 2 to 4 beats per minute. When the temperature increases from 75 degrees to 90 degrees, you can expect your heart rate running at a given speed to increase by approximately 10 beats per minute. High humidity magnifies the effect of high temperatures on heart rate