After Spikey diagnosed my knee pain as an IT-band problem, I did a little research into causes and treatments. And I think I figured out what happened. Yes, I was on a long run yesterday, but my knee started hurting about 4.5 miles in. I've gone that far before without problems. But I do a lot of my running on a treadmill. I'm used to a flat surface. A little over four miles from my house, the lakefront path is pretty steeply banked, unless you run right up by the lake. So many people were out running and walking yesterday that the flat section was quite crowded. So I ran on the steep bank. Not my best idea.

In any case, my knee is feeling somewhat better today, though all the damn stairs at work didn't help much.