You are here:
| Expert | Average Ratings | Expertise |
|---|---|---|
Dave HalsteadAvailable
|
Questions about standards, helmet testing, performance, injury reduction, biomechanics of head and neck injuries and other technical helmet issues that might increase education, knowledge and awareness of helmets, the limitations and benefits of wearing them. |

©2009 About.com, a part of The New York Times Company. All rights reserved.