Heart rate zones based on lab-based lactic acid threshold test
Having completed a lactic acid threshold test I would appreciate the option to set the heart rate for 2mmol/L, the heart rate for 4mmol/L, max heart rate and resting heart rate.
I may be in the minority, but have found that entering either of these heart rate thresholds as well as my max and resting heart rate have not yielded reasonable results for the Zone calculation. I ended up having to play around with the threshold until I arrived at reasonable zones.
Alternatively/in addition, links to the source material of how the wealth of methods calculate threshold would be helpful too.