I am a new runner (since August). I am currently running about 25 miles per week and plan to increase that number to about 40 through the winter. I am seriously considering training exclusively at LHR for that period. I am not sure if LHR running is appropriate for me at this milage level or or only for runners at 50+ mile/week.
I am also uncertain what HR to run at to get maximum benefit as a 41 year old male. If I use the 180 formula, I calculate that my HR should be at 139 bpm. Is this reasonable? I have read that these calculations are often not appropriate for 40+ yo people.
I plan to do exclusive base building for four months, then incorporate some speed work into my training for the summer racing season.
Any advise would be greatly appreciated.