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Question about heart rate

REB's picture
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2
Member
829 days
started by REB on July 3, 2006

I've just started running again 6 months ago. I always seem to push too hard, so I bought a heart rate monitor (Nike C10). It's just hard for me to believe that the numbers it's giving are correct.

Two weeks ago I ran 13 miles at 7:45 pace, and last week I ran 9 miles at 7:30 pace. Well, I decided to go out for a first run with my new monitor after calculating that I would want to run at approx. 138 bpm - this has me running at slower than 12:00 per mile. :eek:

This can't be accurate can it? Does anyone have a suggestion?

Thanks
REB

MAggie's picture
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108
Member
949 days
MAggie posted 2 years ago.

When I wear my monitor, depending on the temperature and humidity my HR can be anywhere between 165 and 180 or so. It's not that I'm out of shape but I just have a naturally high HR.

If I tried to stay anywhere around 138 I'd be walking more than running.

To quote my buddy the BlueAssed Biker: "Don't think about it, just do it." - PrinceofClydes

tri-ac's picture
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1636
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1002 days
tri-ac posted 2 years ago.

A lot of people are surprised at how slow you have to go to get your heart rate down for aerobic efforts. you're probably running just under your Lactate Threshold (LT) heart rate, which is the highest end of the aerobic zone. Since you are fairly fit (7:30/mi for 9 miles sounds fit), it is higher than the 138 you were trying to hit. Anywhere from barely jogging up to your LT heart rate is going to feel like you could just keep going, but that doesn't mean there isn't a variety of speeds within that range.

just run with your monitor and don't clockwatch it. after a bunch of runs, you will have a larger sense of what your Relative Perceived Effort (RPE) is relative to HR. You may even change your sense of what your RPE is after seeing how your heart is working. Everyone is different.

rob6118's picture
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1198 days
rob6118 posted 2 years ago.

I'm the same way as maggie, and in around the same shape as you. Resting heart rate of 55-75 depending on my training schedule, and I run at 155-175 depending on how hard I'm pushing. My distance runs I try to keep at 165 or lower. I too don't understand how I could be expected to keep my HR at 138. In order to get anything below 155 I have to essentially walk and that doesn't seem to be an effective means of training.

Rob