Jun 2020
3:06pm, 30 Jun 2020
70,541 posts
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Gobi
Chris - I do and discount the outliers
My max HR was actually on a bike in a scratch race on the track.
I had some discussion with a reknowned coaching friend who actually doesnt believe you should use race derived HR max due to adrenilin which I disagreed with. In the right interval or hill session I can really get my heart rate up.
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Jun 2020
3:15pm, 30 Jun 2020
2,819 posts
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J2R
There's something to be said for the idea that towards the end of a race you are likely to affected by tiredness which will suppress the heart rate you can attain (a kind of speed-governor effect). Where I've experienced my highest heart rates outside of specific testing is when I've been thoroughly warmed up after something like 2-3 miles fast, but not race pace, then I accelerate up a hill. My heart rate soars and yet I feel comparatively fresh.
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Jun 2020
3:16pm, 30 Jun 2020
70,542 posts
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Gobi
Suppression is more common when over trained.
Fatigue at the end of race more likely stops max just due to not being able to push.
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Jun 2020
3:17pm, 30 Jun 2020
70,543 posts
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Gobi
Oops
However , the logic has merit J2R
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Jun 2020
3:55pm, 30 Jun 2020
11,382 posts
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larkim
I'm not quite finger in the air-ing it. Last Tuesday in the heat I did a 20 minute fartlek session in the building heat (Mone-fartlek, 2x90s, 4x60s, 4x30s, 4x15s with equal cruise recoveries) which I took too hard and peaked at 178, back in 2013 I was running the final mile of parkruns at 181 average, with individual 100m segments between 183 and 187 in the final mile (inclines / hills) (though I can't totally discount unreliable data with that old stuff).
So I can't hand on heart tell you what my max is, but it is definitely in / around 180 so that's what I base my zones on. 48RHR is valid, I've measured that at that level a fair few times.
180-48 gives 140 as Karvonnen Z2 max, knock off or add on 2.4 either side for 176-184 as max, and I never ever treat >140 as being right for Z2 efforts, though I do let heat and sometimes hills get in the way of limiting myself to that when I'm running for pure pleasure rather than for pure training.
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Jun 2020
4:01pm, 30 Jun 2020
70,548 posts
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Gobi
back in 2013 I was running a parkrun at 175 , that was a LONG TIME AGO :¬)
However, sounds ball park Larks and given you are not that serious surely ball park works :¬)
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Jun 2020
4:30pm, 30 Jun 2020
11,383 posts
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larkim
OK, for precision shall we say 178 as I can verify that one (and it did feel pretty damned uncomfortable!)? 139 top of Z2 - done!
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Jun 2020
5:16pm, 30 Jun 2020
72 posts
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Big_G
Maffetone isn't anti-speedwork. I'm not sure where this comes from, but yet hear/read it a lot. He talks about doing 3 months of trying at MAF and then 3 months of racing, for example. He also talks about speed work but admittedly does not go into detail about this. I'm genuinely not sure how this differs hugely from other HR-based approaches - i.e., build a base, then introduce speed work (or racing).
I was lucky that my MAF rate was basically in the right zone in terms of what my max HR is. There is no doubt that training to MAF works for a lot of people.
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Jun 2020
6:07pm, 30 Jun 2020
1,317 posts
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Paul N
Did a bit of speed work tonight, 8x 600m targeting a 2:12-2:18 window. Managed to hit them all (17; 14; 18; 15; 16; 12; 18; 17).
Average HR for the intervals was in the mid 170's, with a spike of 183 (vs. a Max of 184)
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Jun 2020
7:05pm, 30 Jun 2020
16,833 posts
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Bazoaxe
I’ve been doing HADD for most of lockdown and had a big jump for my 80% max effort tonight.
Pace 11 seconds per mile faster than my best before for similar effort and about 20 seconds per mile faster than the last few of these.
Let’s hope I see that continue.
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