A few weeks ago, after a long sit at my desk, I got up and rushed down a set of stairs, heading to the fitness center. Crack! My knee twisted, probably because my hip muscles were cold and stiff. What followed were several weeks of pain, limited knee movement, and a debate – what to do?

First tendency when a limb is hurting – don’t use it, favor it, treat it with caution.  Makes sense – if the knee hurts when you walk, so walk less.

Turns out to be wrong. I did some research. Here is the result. Keep in my mind: I am economist, not a doctor. Economists break things, rather than heal them. (That’s a true saying in Silicon Valley: “Move fast and break things”. Lately, they sure have).

I chose to exercise my sore knee, rather than immobilize it. Cautiously, but steadily – lots of walking (our dogs helped!), some........

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