As a biomechanist, he emphasizes technique analysis and movement pattern training in conjunction with strength building based on the specific physical requirements of each sport.
The biomechanist determined that this led to a 30 percent increase in strain to the upper trapezius muscles, explaining the stiff neck and associated headaches.
The comparative biomechanist says it's because some might (incorrectly) come to the conclusion that such findings could be used to sanction violent behaviour.