I’m with you in that the strength and power and structured specificity is new to my outdoor training though it was very much a part of my (long ago) competitive rowing career.
Since I left rowing many years ago, I’ve kept up pretty good fitness in my legs and aerobic system but my upper body and core have been left to weaken without any real targeted training other than a few hours on the rowing machine here and there. No surprise then that I then suffer on the long upward days with a heavy pack.
Thanks for posting your experiences and good luck on Denali. It would be great to hear how you go and how you think your training contributed. While I have the thanks out, a big thanks to Steve and Scott, both for their book and this site. TftNA was a turning point for my training and the training plan is really the icing on the cake.
I’d also like to hear from anyone else who’s doing one of the longer training plans, so if you’re out there then speak up!
Jimmy