@jakob
Well, the book (p. 249) states pretty clearly that you should add weight. I really hope Scott and Steve don’t want me to carry up to 30 % of my body weight while running.
The purpose would still be to build a aerobic base, as until now I thought that both zone 1 and zone 2 workouts do that.
As I am mostly a hiker, that is also the most specific workout that I do, with about the weight as on a lot of my goal hikes. I also try to hike fast and hope that this will feel like “normal speed” on goal hikes (some day). And I would guess that this prepares your tendons, ligaments etc. in a different way than running does. I know good runners that got tendonitis after 4 days of carrying a pack.
This is also definetly an exhausting workout, though in a different way than a trail run.
Nothing too miserable about that. The weight doesn’t feel uncomfortable on my back, I like being in the woods, I like hiking, I like listening to music. But too much time spent if it makes no sense for sure.
It’s 5 hours of trail running in zone 2 by the way. Plus the weighted hikes, a bit of trail running in zone 3, ME-workouts, core and strength training.