A team of BYU researchers, backed by funding from the U.S. Figure Skating Association, have created a prototype device that helps measure jumping performance for figure skaters - kind of like a FitBit for ice skating. The waist-mounted device uses an accelerometer, a gyroscope, and a magnetometer to identify when a skater performs a jump and then calculates the height and rotation speed of the jump. Jumps are the No. 1 thing that skaters and coaches want information about. Most overuse injuries are likely related to the landing specifically. The researchers haven’t, in the past, really had a good way of measuring those forces.