Mikael Eriksson on HR-Based Training

Endurance Innovation is now on Patreon! Have a peek at our page and show us some love.3:45 what can monitoring HR during training tell us?A good proxy for non-invasive measurement of internal load5:30 how does Mikael use HR in coachingTypically a secondary metric to provide context to pace and power metrics8:15 difference between value of using HR as a primary metric in beginner vs advanced athletes9:45 is HR ever a primary metric? Specifically in longer endurance efforts.14:00 testing or estimating LT1 / AeT75% - 80% of MaxHRMaintaining HR with no drift over constant power on long efforts. This one is tricky.Lactate testHR doesn’t change much over timeTalk testHRV Dfa A1 analysis 19:45 cardiac drift / aerobic decouplingIs it useful?Ed Coyle paperLargely caused by hyperthermia & dehydrationMay be partially caused by gradual glycogen depletion in working motor units28:30 what do you infer from a workout with abnormally high HREnvironmental: heat or altitudeMay be caused by illness, but not well understoodStimulants like caffeinePost COVID recovery?33:45 what do you infer from a workout with abnormally low HRWhen combined with a higher-than-expected RPE, is a sign of overreachingWhen the decline is steady, and gradual over a long time horizon, it could be a sign of improving aerobic fitnessMaybe glycogen depletion when looking at high intensity training sessions39:00 Mikael’s thoughts on training using RPE onlyCheck out Scientific Triathlon and listen to Mikael's excellent podcast That Triathlon Show wherever you get your podcasts.