[azerty254]

I have been struggling for several years with the problem that my heart rate rises very fast from the moment I start running, so three years ago I did a vo2 max test and it showed my aet 135 , lactate threshold 190 and max 212.
When I saw these numbers I knew why I couldn’t run at a low heart rate due to low aet.

Then I started training (11-12 hrs/week) at low heart rate averaging around 135 bpm for almost 2 years, mostly cycling and hiking.
A few months ago I did a vo2 max test again, this time on the bike. and here were my values: aet 168 and lactate threshold 186, vo2 max: 64.
Now I recently started running again after 2 years, and my heart rate is still rising very fast.

By fast I mean from 105 bpm to 170 in 1 minute after 2 minutes i am already at 185 bpm. the pace i run is 6 min/km, not very fast.
I find this very strange especially since a few months ago I hiked 100 km in 14 hours and regularly go cycling 150 km. But I cannot run 5 km.
Does it really have to do with the aerobic threshold that it is still too low?

attached: my recent workout of 2 x 1 km with 3 minutes rest in between.

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[llaurent2006]

llaurent2006 on February 18, 2024 at 11:32 pm #84913

Hi Azerty,

Thx for sharing and that’s quite surprising. Personnaly I’d fo to see a cardiologist first to make sure there is no issue (which very unlikeky given your training in past 2 years). Then probably it’s about getting your body used to running from a nervous system point of view, so doing 3min on / 1min off easy running as you did is a great way to slowly introducing running. L