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Increased HR on my run

As I enter the Nov OS, I figured I'd throw this question out there since I've been thinking about it over the last couple weeks. In my run tests from last season, my max hr was mid-upper 160's. This was on a standard 5k test. Even when racing a sprint or Oly distance last year, my hr never exceeded upper 160's. A few weeks ago I raced a stand alone half marathon. I really stuck to my plan and not only negative split the race, but was able to drop the hammer in the last 3 miles: average mile in race 7:20 - mile 11: 7:04 - mile 12: 6:59 - mile 13: 6:48 - residual: 6:24.

Here's the question: In the last 3 miles of the race I was able to sustain 175 or higher HR, albeit a lot of mind of matter was involved. But, nevertheless, the reading was accurate and I think I maxed out 178-179 for a stretch. Is this the goal hr for Z5 that I should be shooting for when testing? I mean, I feel like I give a solid effort when I do my 5k tests, but can I maybe do more or is the higher hr more of a function of a longer race?

Thanks again for any input or comments.

Comments

  • @ Brad, and that is the way it is done good job.

    It is called race day magic, at least that is what I call it. You/ We are capable of doing much more than we think. In boxing back in the day, my trainer would say things like you can do more push more if I had a gun to your head or imagine someone is going to hurt someone you know and you have to push through for just a little more. It only works out to a certain extent as things happen when you really ... really want something. And listed above your goal was met and you pushed for more, the mind is a beautiful thing.
    I say if the last 3.1 miles of your race is better than your Vdot you have a Vdot bump however I would not use that last 5k in a HM for my LTHR.
  • Are you training with pace as well as HR? I would use pace as primary, HR as secondary (and observe HR at pace), especially during the OS.

  • @David - the last 3.1 was not a VDOT bump, but the HR was definitely higher. My guess is that it was more a function of the length of the run vs a stand alone 5k.

    @Coach R - Yes, I train using pace 1st followed by HR (secondary). For example, on a training day with warmer temps, I try to keep my prescribed paces on par even though my HR will be higher. But, I have become pretty in tuned with my pace vs HR...that's why I noticed the variance in the half marathon. When I raced my 2 HIM's this past season, I think I struggled in the last couple of miles of the run to keep my HR up to the level I would've liked..so that was the opposite from the stand alone.
  • I agree with Rich. That said, if you are not able to get your HR up when running intervals, you may not be running them hard enough and you might have underclubbed your test. My HR in a hard workout is usually in the low 180s but when doing LT intervals (e.g. mile repeats) or a shorter distance race to test VDOT (I usually use an 8k or 10k to test) I'll see 187-188 and maybe even 189. Note all of this is lower than the maximum I ever saw which was 195 on a treadmill.
  • The goal is to run faster by running faster, not to run and push your HR up to whatever level you're looking for. That's to say that HR is a symptom of the work you're doing, it's not necessarily the goal.

    Also the difference you describe between a 5k HR and a half marathon HR could be caused by cardiac drift -- your HR goes higher and higher for any number of reasons -- dehydration, etc. 

    OS training is probably simpler than what you're used to. Here's what I would do:

    • Do your 5k test as best you can. This means running very, very hard and how to pace that is something that you learn over time. 
    • From this test, get your time = a VDot = training paces. You'll also get an average HR that you'll use to calc your HR training zones.
    • Then for your interval runs between tests, go by pace and just observe your HR. Again, your goal is to run 2 x 1mi @ 7:20 pace, for example, not to run 2 x 1mi @ a 170bpm HR. If you didn't have a GPS or a measured course then, yes, you'd run to that goal of 170bpm. But as you know, that can be a moving target. You might be 168 on the first one and 175 on the second, though both at the same pace, as your HR response lags your effort. Instead, just run at your goal pace and observe your HR. 

    The OS is about cycling and running to the objective metrics of power (if you have it) and pace (if you have it also, but very easy to find a measure mile on which to do intervals, etc), and observe your HR. Over 14wks of the OS you'll learn stuff about the interaction of your HR with these objective metrics. You'll learn more as you transition over to the other training plans later in the season. 

  • Thanks for some great responses...definitely clears up some concerns. Incidently, I did my 5k run test today and averaged 170bpm and a 6:27/mi. That avg hr is higher and pace is faster than any of my 5k tests from last season, so maybe my body is changing too.
  • ...And you are gaining a growing understanding of just how hard you are capable of working, so your mind and brain are changing, too.
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