Do My Heart Rates at Lt One and Lt Two Change?

With changes in fitness, as i get fitter or i lose fitness, do my heart rates at l t one and l t two change? Or do they stay relatively the same forever? So we've got good studies. Lucia has done a study way backin around two thousand with procycle. Karl foster did another study where they could show that the heart rate at that particular breakpoint stays stable,. At least within a season or a year. Else that means you don't need to be testing your threshold every month to have good data. If it was so easy, you wouldn't need me. Onea mustapear priate one. Forty five. One, forty five e.