If a 180-pound person runs at a casual speed, they can expect to burn around 654 pounds, but if they put on the burners going nearly 11 mph, they can burn up to 1471 calories.
Of course, you also get exact MPH readouts, the ability to track your exact route using GPS technology, get ascent/descent data to pinpoint the toughest uphills and many more bells and whistles you may or may not need.
Dora Lil' Quad - Designed as a toddler-friendly choice, this battery-powered 4-wheeler features a large push-button on the handlebar for easy stop-and-go performance and travels a safe 2 mph on hard surfaces.
Leslie Bonci, MPH, RD, director of sports nutrition at the University of Pittsburgh Medical Center, thinks that feeding dieters prepackaged meals sets them up for failure once they're on their own.
It's hard to put into words the feeling you get from dodging in and out of oncoming traffic at 140 MPH just to accidentally clip the tail of a bus and send your car barreling through the air.