Check this forum discussion on vertical training –
Scott’s response will likely answer your questions.
I did some VKs and the fact is that even the world’s bests aren’t really running, they are speed-hiking (hand on knees or with poles). The biomechanics are very different from other trail running races (stride, but also muscle recruitement).
My question is twofold:
-Is it necessary to run on rolling terrain to perform in this sport? Isn’t hiking on steep hills (over 30%) better as aerobic “base” training?
-I read TFNA and TFUA, the strength training is different between the two (more traditionnal max strength oriented in TFNA than in TFUA). For the VK, wouldn’t max strength (before adding ME) be more important than for other trail running? In TFUA program, there is only 1 strength session with weight. Does it makes sense to add another weight training session for VK training?