I have tried standing desks, and found that standing for long periods is too distracting. I have to shift my weight often to remain comfortable, focus on not lo

I have tried standing desks, and found that standing for long periods is too distracting. I have to shift my weight often to remain comfortable, focus on not locking my knees, etc. What does work well for me is a treadmill desk. Once you get used to it (it took me a few days) you don't even notice that you're walking. I do find that I have to pause the treadmill to work on particularly difficult problems (I do both front-end and back-end on LAMP-oriented sites), but most of the time my brain can handle both. edit to add: I work from home, which makes a big difference, I understand that a treadmill desk isn't viable for everyone.