[Ewa]

Ewa on December 11, 2019 at 2:10 pm · in reply to: Why would HR go down on a steep hill ? #34164

I am a beta tester of sport watches of one of the main brands. I tested OHR measurement and it is often 10% off in my case comparing to the one from a HR belt, left hand, right hand, in, out. The best accuracy was for running, worst for cycling or climbing. Moreover, using poles, like in skimo or uphill running, decreases accuracy of the wrist measurement.

[Ewa]

Ewa on December 10, 2019 at 2:54 pm · in reply to: Doubts on lactate test results #34094

Scott Semple, yes, it also looks strange to me. It highly relies on maximum HR that I did not reached, missed by a few bpms.
I looked at methods at lactate.com now I am reading scientific papers on that. Maybe later I will call the lab and ask.

Later in the skimo season I will probably repeat the test adding a gas exchange method and see how measured so threshold fit to lactate method. I bought a portable lactate measurement device but had problems with collecting a sample by myself.

[Ewa]

Ewa on December 10, 2019 at 2:49 pm · in reply to: Doubts on lactate test results #34093

Thank you. I fitted a curve to lactate results, read time for which lactate level given by the fitted curve is equal 2 for AeT and 4 for AnT. Then I read interpolated HR values for the calculated time and received 160 and 172 correspondingly.

I also checked another method of calculating AnT point the intersection of two tangent to lactate graph lines (taken when the graph is more or less linear, a method from lactate.com) and also received 172.

[Ewa]

Ewa on December 9, 2019 at 2:42 pm · in reply to: Doubts on lactate test results #34016

Trying to attach a graph.

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