ScienceDaily (Dec. 27, 2007) — A chair that undulates, a mouse that vibrates, a monitor suspended over a desk on a movable arm. These are some of the kinds of newfangled ergonomic products that Alan Hedge, international authority on office ergonomics, studies to see if they can prevent repetitive motion injuries among the estimated 100 million people who now use computers in the United States.

This chair with an undulating seat is a prototype of one of the ergonomic products Professor Alan Hedge studies to determine what kinds of products would prevent back and other problems caused by sitting in front of a computer all day. (Credit: Lindsay France/University Photography)

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