On Smart Soccer Ball as a Head Impact Sensor
Theodore Stone, Nathaniel Stone, Nirupam Roy, William Melton, J. Benjamin Jackson, Srihari Nelakuditi · IEEE Transactions on Instrumentation and Measurement · 2018
Heading the ball is a fundamental skill in soccer. However, recent studies have shown that players who headed the ball frequently were more vulnerable to concussion. To record head impacts and flag potential concussions, intraoral and head-mounted devices such as Vector MouthGuard and Biosystems xPatch have been developed. However, they are yet to gain wider acceptance among soccer players, perhaps because they are inconvenient and expensive. Since headers involve contact with the ball, we leverage this unique opportunity in soccer to explore using a smartball for monitoring headers. We develop a method to assess the impact of headers using the Adidas micoach soccer ball and compare its performance with that of the xPatch. We find that, while the micoach ball is somewhat limited in its sensing capabilities, there is enough promise that a similar ball with a more precise accelerometer can be an affordable and convenient alternative for monitoring header impacts in soccer.