I’m doing some analysis of my training data over the last few years but cant really rely on past acurate lactate threshold heart rate for bike/run because of poor field testing.
I did an FTP test today (CP20) and compared it to one I did in May and the average HR is only 2 beats difference. Can I take this value for lets say last year’s training?
My assumption is the following: in “trained” athletes, the lactate threshold heart rate doesnt change much. Only the underlying pace or power at this heart rate evolves, in bike or run.
I think the best predictions of maxHR have it declining by about 0.7 bpm per year of age, and this doesn’t vary much with fitness.
LTHR can vary more, even across a single season. Amongst trained athletes, you can expect 88-92% of maxHR (there are outliers). If your off-season is on the couch or focussed exclusively on aerobic base, you could see a dip to 88-89% (which would represent 5-6bpm). If there are distinct phases to your training cycle, then assuming LTHR is unchanged may be unreliable.
I find my LTHR will flactuate a couple BPM between tests. I just assume it’s due to temp, hydration, fatigue, etc. However, my LTHR has been pretty consistent over the years. Probably within 5 bpm over the last five years. My max HR has gone down a couple beats, but LTHR has gone up a few as well.
I also don’t follow my LTHR from my threshold tests because it’s too high. My LTHR is around 96% of my max so I base my aerobic threshold on a mixture of max and LT HR.
I’m doing some analysis of my training data over the last few years but cant really rely on past acurate lactate threshold heart rate for bike/run because of poor field testing.
I did an FTP test today (CP20) and compared it to one I did in May and the average HR is only 2 beats difference. Can I take this value for lets say last year’s training?
My assumption is the following: in “trained” athletes, the lactate threshold heart rate doesnt change much. Only the underlying pace or power at this heart rate evolves, in bike or run.