LAS VEGAS--(BUSINESS WIRE)--NordicTrack, the leading fitness brand, created the World's Largest Treadmill Dance, synchronizing and controlling the movements of 45 treadmills with iFit technology. The video was released this week as part of iFit's healthy "Internet of Things" exhibit at #CES2015, booth #74321 at the Sands Expo Center. The NordicTrack Treadmill Dance video is already one of YouTube’s most popular and exciting videos with more than 850,000 views. It was filmed in December at the c