Stanford's Ryan Cidzik Comprises the Ultimate Guide for Neck Testin...
There is so much information on how horrible concussions are for you. Now, thanks to Ryan Cidzik, there is information of how to prevent concussions. These training DVD's will assure your athletes that they are much safer to play the game and will have confidence doing so.
Head Games: Training the Neck to Reduce Concussions
Concussions have become a major issue in sports and coaches have a responsibility to protect their athletes
