14 January
Ultra slow recovery run 10K @ 1:17:45
HELP, someone read this in detail!!!!
So i was wrecked from the time trial PR , wanted to do a really low impact run. Training pace calculator says long run pace should be in the 6:08 to 6:53 range.
I thought that going around 7:00 or a little slower would have me at sub-aerobic HR. Right ? WRONG! I was going awfully slow but HR kept rising over 150. I had to walk for 100-200m to bring it to 130, then jog again. That kept repeating, even when the jogging pace was horrifically slow, 8:00 to 8:30.
Around 5K i was fed up with that, decided to turn this to a pace/HR test.
Did 1km at 5K race pace, not all out. That landed at 4:50 with an average heart rate of 155.
Then walked for 3 minutes which lowered HR to 120 ( was down to 140 in 90 seconds ).
Then never looked at watch again, did 3.5K at a "long -really-slow" run pace. It landed at 7:00-7:30 but with 150-ish HR.
Here is the complete matrix:
RUNNING PACE AVERAGE HR MAX HR
Steady slow 7:11 142 158
Slow+walk 8:00 145 159
Slow+walk 8:23 143 152
Slow+walk 8:42 138 153
Slow+walk 8:55 139 152
5K race pace 4:52 156 165
Steady slow 7:40 151 164
Steady slow 7:41 152 165
Steady slow 7:00 153 165
Steady slow 7:30 150 159
WTF is that??? How do those numbers add up?
Last jog+walk km before the 5K race pace km was 8:55 pace!!!! That is not even jogging speed, is is walking and rather slow. And yet it was 139 average HR with 152 max.
And then the last slow 3.5K were essentially the same HR with the 1K @ race pace, despite them being 60%effort ( 4:50 vs 7:40 ).
150bpm may seem low to you but it is not for me, my 100% HR is now about 182 or so. 150 bpm is 82% max, it is intense aerobic.
Or isn't it? Is there a minimum threshold? Like you start running, bam , 145, and then your VO2max capacity determines how faster you can go or something like that?
Enlighten me please because i am awfully frustrated...
Edit:
Some really good answers/points in here :
https://medium.com/runners-life/how-slow-is-slow-7431bb7cc029- Ideal slow pace HR for me is around 135, watch agrees, the green zone is 130 to 140
- HR is not the decisive matter. "easy" feel is more important. But in any case 155 / 85%max is not easy
- True truly slow is indeed boring AF , nearly impossible, almost double race pace so about 9:00 for me
- Too long runs are not recovery, even if very slow, distance takes over speed