![Quantitative evaluation of impact attenuation by football helmets using a modal impulse hammer - Brian Cummiskey, Goutham N Sankaran, Kevin G McIver, Daniel Shyu, Justin Markel, Thomas M Talavage, Larry Leverenz, Janette Quantitative evaluation of impact attenuation by football helmets using a modal impulse hammer - Brian Cummiskey, Goutham N Sankaran, Kevin G McIver, Daniel Shyu, Justin Markel, Thomas M Talavage, Larry Leverenz, Janette](https://journals.sagepub.com/cms/10.1177/1754337118823603/asset/images/large/10.1177_1754337118823603-fig8.jpeg)
Quantitative evaluation of impact attenuation by football helmets using a modal impulse hammer - Brian Cummiskey, Goutham N Sankaran, Kevin G McIver, Daniel Shyu, Justin Markel, Thomas M Talavage, Larry Leverenz, Janette
![Michael "Playmaker" Irvin Signed Miami Hurricanes Full-Size Helmet Inscribed "it's all about the 'U'" (JSA COA) | Pristine Auction Michael "Playmaker" Irvin Signed Miami Hurricanes Full-Size Helmet Inscribed "it's all about the 'U'" (JSA COA) | Pristine Auction](https://images.pristineauction.com/212/2127915/main_1638805679-Michael-Irvin-Signed-Full-Size-Miami-Hurricanes-Helmet-Inscribed-it-s-all-about-the-U-JSA-COA-PristineAuction.com.jpg)
Michael "Playmaker" Irvin Signed Miami Hurricanes Full-Size Helmet Inscribed "it's all about the 'U'" (JSA COA) | Pristine Auction
![What Safety Kodi DeCambra's Commitment Means for Oregon Ducks Football - Sports Illustrated Oregon Ducks News, Analysis and More What Safety Kodi DeCambra's Commitment Means for Oregon Ducks Football - Sports Illustrated Oregon Ducks News, Analysis and More](https://www.si.com/.image/ar_1:1%2Cc_fill%2Ccs_srgb%2Cfl_progressive%2Cq_auto:good%2Cw_1200/MTg2OTMwMTkyODczMTcwODMy/kodi-decambra.jpg)
What Safety Kodi DeCambra's Commitment Means for Oregon Ducks Football - Sports Illustrated Oregon Ducks News, Analysis and More
![Antonio Brown seeks 'Schutt Air Advantage' helmet amid NFL flap: Why it's hard to find | Fox Business Antonio Brown seeks 'Schutt Air Advantage' helmet amid NFL flap: Why it's hard to find | Fox Business](https://a57.foxnews.com/static.foxbusiness.com/foxbusiness.com/content/uploads/2019/08/0/0/Antonio-Brown-AP.jpg?ve=1&tl=1)
Antonio Brown seeks 'Schutt Air Advantage' helmet amid NFL flap: Why it's hard to find | Fox Business
![Amazon.com: Schutt NCAA Kansas Jayhawks Mini Authentic XP Football Helmet, Matte Columbia Blue Alt. 2 : Everything Else Amazon.com: Schutt NCAA Kansas Jayhawks Mini Authentic XP Football Helmet, Matte Columbia Blue Alt. 2 : Everything Else](https://images-na.ssl-images-amazon.com/images/I/71kO-ZIOftL._AC_UL210_SR210,210_.jpg)