NBC/"Dateline"
In her article at The Wall Street Journal, Jen Wieczner reported that exercise workstations actually slow down your typing speed and accuracy by 16 percent when compared to a standard desk, according to a study by Mayo Clinic.
In another study conducted by the University of Tennessee, researchers found that "treadmill walking resulted in up to an 11 percent deterioration in fine motor skills like mouse clicking, and dragging and dropping, as well in as cognitive functions like math-problem solving."
Wieczner wrote that when John Osborn, CEO of advertising firm BBDO, got his treadmill desk, he used it 80 percent of the day while working, but it wasn't long before his colleagues noticed the "rampant misspellings in his emails."
"You quickly realize how difficult it is to type anything longer than a sentence," Osborn said.
Aside from increased typos, treadmill desks and stationary bikes might cause you to fall more often than merely sitting in a chair.
More on this dangerous trend at the WSJ >
On the other hand, Sitting In A Normal Desk Can Kill You >