[Joe Molloy]

Hi Scott and Mark

I will be in the mountains on Monday, so tried to do the AeT test today.

I used a Treadmill at 10% for 60 min at a constant speed and started at a heart rate of 130 (during my warmup I aimed for 135bpm, but found it already rising during the warmup to 140bpm so dropped down till it stabilised) – http://tpks.ws/3OXEKNRTOCS7S5466GPFFKYO4E

Warmup was a total of 20 mins at around 135bpm after cycling to the gym.

Anyway, in the results, I now have a negative HR drift of -5%, finishing at 120bpm.

I obviously undershoot the target rate massively and will try again next week, but I was still surprised to see a negative drift – I didn’t know that could happen?

Any enlightenment on this would be appreciated!

Topic

[MarkPostle]

MarkPostle on May 13, 2022 at 9:04 am #67107

What was your exertion level here? Did it feel all day sustainable? Were you able to nose breathe?

[Joe Molloy]

Joe Molloy on May 13, 2022 at 9:10 am #67109

Minimal exertion. I was only nose breathing, and could have done it all day.

I did notice quite a bit of HR fluctuation during the test +/- 4bpm, but I guess that’s normal too?

[MarkPostle]

MarkPostle on May 13, 2022 at 6:38 pm #67143

Yes HR flux of 3-5 beats is probably mostly normal but more than that may be HR device error if using a treadmill. Given your subjective feeling abut difficulty and the neg HR drift I would attempt the test again at 10 BPM higher than this one and see how the data looks.

[Joe Molloy]

Joe Molloy on May 16, 2022 at 6:21 am #67221

Hi Mark

Thanks for the advice

I think it worked it out now with that help. Aimed way too low initially. In case your interested in the process:

Had a go yesterday starting at 141bpm, and saw nothing
Then started at 150 today, and saw a negative drift to 141bpm in the first 30 mins.
That just annoyed me so I started progressively ramping up. And put the speed up 20%, HR stabilised at 153bpm, then saw a ~2.6% increase over the next 20 mins (Determined this after with TrainingPeaks).

I kept ramping up, and started to feel a bit of a Z3 effort around 163bpm, and blew up at ~170bpm

So I think I’m finally in the ballpark around 155bpm. I expected it to be lower I guess.

Thanks again