...doing the Mournes Skyline in October, 35km, 3,400m.
No issue with distance, terrain etc. Did a 52km run with about 2,000m last year. However, it's the 3,400m that concerns me.
Any particular training to get vertical metres in the legs...I mean beyond the odd run across mountains. Should I be doing repeats on hills? How about day long hikes? Cycling? Or should I just let the running look after the legs and focus more on something like core work?