INDIANAPOLIS — Several players, including Auburn quarterback Cam Newton, Georgia wide receiver A.J. Green, and Boise State wide receiver Titus Young worked out in a performance shirt named E39 and made by Under Armour.
The shirt is designed to measure precision and accuracy. It is a compression-fitted shirt with electronic touch points that track the players’ biometric signals and sends them to a wireless device that transmits the data.
It measures the athletes heart rate, breathing rate and core acceleration.
–D. Orlando Ledbetter, The Atlanta Falcons beat blog