I often find that my limiting factor for running very long distances is not my aerobic fitness but my muscular endurance. I can run infinitely on flat surfaces, but as soon as I introduce hills, my legs lose strength quickly.
Is this where some muscular endurance sessions such as a weighted carry are of benefit? My AeT and AnT are within 10%.
For someone currently running ~55 miles/week, 15.5 weeks out from a 100k, how many of these sessions should I be shooting for a week? Lastly, if I have volume training on the same day, would ME be best to do in the morning or evening?
Thanks for the input!