You can do some deep knee bends without leaving your cubicle. There's no need to run laps around the office every 20 minutes. My concern is that you'd be break

You can do some deep knee bends without leaving your cubicle. There's no need to run laps around the office every 20 minutes. My concern is that you'd be breaking away from your task every 20 minutes, which isn't conducive to many kinds of work.