Ganked from winds_of_change:
Sensors Track Martial Arts Blows
Researchers from Palo Alto Research Center (PARC), Stanford University, and Impact Measurement have brought computers into a martial arts sparring ring with a system that senses the force of a hit.
The researchers are testing the system in Tae Kwon Do matches. Information from the sensors combined with the judges’ calls makes for more accurate scoring, according to the researchers. The method could also be used for sensing impact in other contact sports and also for videogames.