I find it endlessly fascinating that in our culture, U.S. especially, we think “doing something” means work. It’s partly semantics. Doing chores, doing exercise, doing gardening, etc.. We don’t say doing healing, or doing rest. It’s kind of a trap, because the other end of that definition is “not doing anything,” which translates into laziness, sloth, and indolence. Healing is too active a process to be tossed off as nothing at all.
Mr. Shoes ran into this when explaining to a co-worker about how I recovered quickly from my BTKR. “Well, she rested most of the time with her legs up and used a lot of ice.”
Co-worker: “Rested? Just that? She didn’t do anything?”
Mr. Shoes: “Yes, she rested on the Lounge Lizard (Lounge Doctor, but he called it that). And she took walks. They were short walks at first. She’s walking everywhere now.”
“But what did she do? Did you help with her exercises?”
“

no! I stayed out of her way. The resting was working so well I didn’t want to jinx it!”
Resting is doing something. Healing our knees becomes our job for a short while, and if resting is what will get the job done best and fastest, then resting is not “doing nothing,” it’s doing the optimal thing. Later, after the knees have healed sufficiently, we move on to the stuff other people call “doing something,” like exercises, gym, or biking and walking.