The new sport of Nordic Walking might look silly, but the physical benefits are serious. Pole-wielders can burn up to 40 percent more calories than regular walkers and because users engage their upper bodies and abdominal region, they work out 90 percent of their bodies muscles. The sport began in 1997 as a way for the Finnish cross-country team to train in summer. Today 10 percent of Finns participate, and it is catching on in the United States as well as the rest of Europe. A report by Dr. Cedric Bryant, chief exercise physiologist for the American Council on Exercise, says Nordic Walking is a low-impact sport and has benefits for walkers of all ages, including people overcoming injuries and athletes looking to cross-train. To strengthen your back and get the added calorie burn, proper technique is required. Stride forward with one foot and the opposite arm, plant the pole and then swing that arm backward as the other arm and leg move forward. Walking in a group might spare some embarrassment, and once your upper back begins to look toned and powerful, don't be surprised if people ask where you got those poles!