And wouldn't you know it, but horses also can sprint still despite how encumbered you were. Well I killed him early on as a werewolf and he did not respawn, but it was always around that time my werewolf time ran out and I turned back to normal. And strangely, in mountain pass that is south of the throat of the world, there was a ranger?/hunter? that had a horse camping out there.
Then I would leave, turn into a werewolf, and sprint across the landscape ignoring everything that came for me. So I would Whirlwind sprint through the dungeon until I was able to get out from my spelunking. Turns out, it doesn't matter how encumbered you are, you can still sprint across the landscape as a werewolf. Back when I didn't know what dwarven stuff was good for smelting down into dwarven ingots (And back where dwarven bows only cost the dwarven ingots and no iron) I would dive into a lot of dwarven ruins, mainly the southern mountains below riften.