day 4 sub45 program long run
out of curiosity :
* Ran today 1h32min @ 5.54min/km and bpm 143. Easy on the breathing part : did the talk test several times. Legs and feet feel tired though as I am not used to ran so long, but this is the purpose i guess ?
* Easy runs should be hrm wise in the cardio (125-143 bpm says my TomTom) or rather in the fitness zone (107-125)?