The following abstract are in PDF form. 
Tae Kwon Do vs. Karate – Biomechanical Characteristics
Quantitative motion analysis study into the characteristics of martial arts has been overlooked. Hence, there is a need to gain such knowledge. On the other hand, some skeptics feel that serious injury may be more likely to occur in martial arts practice than by being hit on the head by a mugger (Sports Injury Bulletin, 2006). One study (Pieter & Taaffe, 1992) found that male college Tae Kwon Do athletes had an injury rate just below that of American Football participants in college. The inherent wisdom uncovered by quantitative analysis of martial art techniques is significant. Such analysis by way of advanced technology will aid coaches in both skill improvement and injury prevention.