Treadmill desks, desks that let you walk while your work, may just be the work stations of the future.  Consumer Reports gave two models a test run.

"We had them (staffers)  read and type on the computer," said Consumer Reports' Linda Greene. "We had them talk on the phone, and we had them surf on the Internet."

A treadmill desk is not necessarily for exercise, but rather to keep your metabolism above a resting rate.  The recommended speed while working is less than two miles an hour.

The Workfit 1030 by Exerpeutic is less expensive at $750.  But some testers, particularly shorter people, said it was comfortable. Several complained that their feet kept hitting the motor casing.

The LifeSpan TR 1200 dt5 costs twice as much at $1500, but testers preferred it because it had better ergonomics for walking and working at the same time.