I just started my 24 week mountain plan and trying to be very diligent esp with HR , I did my first 2 hr hike/run on hilly terrain, As I live in flandlands my option to get 1000ft of vertical gain is to use stairs ( at gym I have 4 flights, 6 in step, 58 steps ,38 laps gives me 988ft ). I did 30 laps and then moved to Stairmaster as I couldn’t keep my HR with in 10 beats on AeT esp going down but once on got on stair master I was able to keep HR around 145. Should I pay more attention to my HR and go in Stairmaster or elevation gain .
Thanks