Anyone experience a longer HRR time after 1 min due to morning workout?

[platinummack]

Anyone else experience this? A longer by a few min HRR after early morning workout after 2nd set, but then Awesome after set 3, 4?
WHen I workout like HIIT, calisthenics, 4-5 sets, 4 excercises, body weight, with high intensity, with min rest, my heart rate after 1 min drops by 24-30 BPM which I read is awesome

Sometimees in the early morning, when I start my HIIT workout, after the 2nd set, my HRR is a bit longer by a few minutes, then when I let it go down and do sets 3, 4 it's perfect and it recovers to 24 BPM lower after 1 min I was told it's because dehydration in the morning, mind/body still not conditioned, etc. I think this is true as when I mimicked the same workout like with 2 set 1 hour later, HRR is awesome at 24+ bpm below, after 1 min of rest and can reach proper RHR within a few minutes.

ANyone else experience a slightly longer HRR time after early morning HIIT? Also isn't the longer you hold your body or heart in higher rate, doesn't it take longer to come down. Aren't those stress tests only require you to workout for 1 min which will make it easier for your HR to come down in 1 min, no?

[iain]

Firstly I was confused by the TLA. Generally HRR has been used on this forum for Heart Rate Reserve, I assume you mean recovery?

As you say at the end, this is rule of thumb at best unless you standardise the workout before. At the beginning of your workout HR tends to go a little lower with a lag too work. So the HR at end of the interval will be lower. Ignoring the thresholds broadly recovery slows as HR slows. So if you only hit 80%, 24 BpM recovery will take longer than if you go up to 90%. Also 24BpM for someone hitting 158 is going to generally take longer than someone who gets to >200 so an absolute no of BpM will not be comparable.

Finally especially after a short work out I often don't hit Max HR until 10-15S after stopping rowing (The lag I referred to).