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Track your fitness, environmental impact with new cell phone applications
Date:11/19/2008

Planning on gobbling a few extra treats this holiday season? Soon, your cell phone may be able to help you maintain your exercise routine and keep the pounds off over winter months, without your having to lift a finger to keep track.

Researchers at the University of Washington and Intel have created two new cell phone applications, dubbed UbiFit and UbiGreen, to automatically track workouts and green transportation. The programs display motivational pictures on the phone's background screen that change the more the user works out or uses eco-friendly means of transportation.

The applications are designed to change people's behavior for the better, said Sunny Consolvo, a recently graduated UW Information School doctoral student and one of UbiFit's creators. In a three-month field experiment, people using UbiFit with the background display kept up their workout routines over the winter holidays, a period when people typically slack off on exercise, while people without the display let their regimen slide.

UbiFit and UbiGreen are part of a larger project at the UW to use mobile computing in everyday activities and long-term goals such as fitness, said project leader James Landay, UW computer science and engineering associate professor. "You can't get fit in a short period of time in one place," he said. "It happens long-term, in many different places and ways."

Current versions of UbiFit and UbiGreen use an external sensing device (the Intel Mobile Sensing Platform) clipped to the user's waist. The device includes an accelerometer to sense the user's movement. The programs could run on phones with built-in accelerometers, such as the iPhone and the new Android G1, with no need for external equipment, Landay said. UbiGreen also relies on changing cell phone tower signals to determine whether a person is taking a trip.

The sensing device determines what the user is doing based on how it gets jiggled around, Landay said --
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Contact: Rachel Tompa
rtompa@u.washington.edu
206-532-9263
University of Washington
Source:Eurekalert

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