Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Virginia Tech updates football helmet ratings, 5 new helmets meet 5-star mark

14.05.2014

Nine helmets now have the best available rating

Virginia Tech has updated results of its adult football helmet ratings, which are designed to identify key differences between the abilities of individual helmets to reduce the risk of concussion.


Stefan Duma, the department head of biomedical engineering at Virginia Tech, demonstrates a helmet-impact test conducted in laboratory conditions. Testing also assesses impacts that occur during actual game conditions, thanks to sensors installed inside players' helmets.

Credit: Jim Stroup/Virginia Tech

All five of the new adult football helmets introduced this spring earned the five-star mark, which is the highest rating awarded by the Virginia Tech Helmet Ratings™. The complete ratings of the helmets manufactured by Schutt Sports and Xentih LLC, each with two new products, and Rawlings Sporting Goods Co., with one helmet, are publicly available at the helmet ratings website.

The new helmets are Schutt's Vengeance VTD and AiR XP Pro VTD, Rawlings' Tachyon; and Xenith's EPIC and X2E.

... more about:
»Modifying »STAR »acceleration

Virginia Tech will continue to update its helmet ratings at the request of manufacturers as new helmets are sold. This brings to nine the number of helmets with the best available rating since the rating system was introduced by Virginia Tech in 2011. At that time, only one helmet rated five stars.

Helmet ratings are based on research that includes analysis of more than 2 million head impacts recorded directly from high school and collegiate football players using helmet-mounted sensors. These data were used to create lab testing conditions representative of all the impacts players experience on the field.

Each helmet model's ability to reduce concussion risk is assessed through 120 impact tests that are analyzed using the STAR Evaluation System, with each test weighted based on how often that impact condition occurs on the field.

Helmets that better manage the impact energy result in lower head accelerations and thereby lower concussion risk. To date, 23 helmet models have been evaluated through the analysis of more than 2,700 laboratory tests.

"The Institute of Medicine released a recent report on concussion in sports that found our helmet rating system to be a theoretically grounded approach on how the injury mitigation properties of helmets could be assessed," said Stefan Duma, the Virginia Tech Harry C. Wyatt Professor and department head of biomedical engineering, and project leader.

The research is funded by the National Institutes of Health, which Duma said is being directly used to reduce player injuries. The impact of Duma's research has been noticed: The NFL has placed a poster of the helmet ratings system in its 32 locker rooms to educate players on helmet safety. Duma expects all future football helmets to be five-star rated.

"Consumers care about safety, and as a result, helmets that are rated poorly are not selling," he added. "This is going to continue to drive helmet design."

Added Steven Rowson, an assistant professor of biomedical engineering at Virginia Tech: "This is remarkable progress for helmet safety in football. Not only are consumers using the ratings to purchase helmets, but manufacturers are using our rating system to design new helmets to achieve five stars.

"Our tests are representative of the impacts that players experience on the field, so helmets that perform well in our tests are going to perform well on the field, making the sport of football safer," said Rowson, who developed the STAR system and testing of the helmets.

Duma and Rowson confirmed this in a peer-reviewed study investigating concussion rates in collegiate football players by helmet type and published in the Journal of Neurosurgery.

"We found that concussion risk was 54 percent lower in players wearing a four-star helmet compared to a one-star helmet," said Rowson. "This closely matches the reduction in concussion risk that our ratings predict. It's great to see agreement like this between our on-field and in-laboratory studies."

Ratings this fall will be expanded to include hockey helmets using newly developed testing methods. The hockey ratings will incorporate both linear and rotational acceleration into the evaluation system, following a report from the Institute of Medicine that suggested that Virginia Tech add rotational acceleration and youth specific data to increase the wide-spread applications of the helmet system.

Football helmet ratings methodology will be updated in 2015 to include linear and rotational acceleration, which will include for the first time youth helmets. Duma and Rowson earlier laid five-year plans for evaluating helmets in all sports.

The researchers are careful to warn that any player in any sport can sustain a concussion, even with the best head protection. Virginia Tech's rating system identifies helmets that best reduce the risk of concussion during play. "There is no concussion-proof helmet," said Duma. "Modifying rules and teaching proper technique play the most important in reducing concussions in sports because they reduce exposure to head impact. For the remaining head impacts that do occur, having the best head protection will further reduce risk of concussion."

###

The ratings system is independent of any helmet manufacturer and utilizes funding from private donations, the Virginia Tech School of Biomedical Engineering and Sciences, and Virginia Tech's Institute for Critical Technology and Applied Science. Detailed reports that outline the methodology and resulting data are available on the ratings' website.

Steven D.A. Mackay | Virginia Tech

Further reports about: Modifying STAR acceleration

More articles from Health and Medicine:

nachricht Unique brain 'fingerprint' can predict drug effectiveness
11.07.2018 | McGill University

nachricht Direct conversion of non-neuronal cells into nerve cells
03.07.2018 | Universitätsmedizin der Johannes Gutenberg-Universität Mainz

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: First evidence on the source of extragalactic particles

For the first time ever, scientists have determined the cosmic origin of highest-energy neutrinos. A research group led by IceCube scientist Elisa Resconi, spokesperson of the Collaborative Research Center SFB1258 at the Technical University of Munich (TUM), provides an important piece of evidence that the particles detected by the IceCube neutrino telescope at the South Pole originate from a galaxy four billion light-years away from Earth.

To rule out other origins with certainty, the team led by neutrino physicist Elisa Resconi from the Technical University of Munich and multi-wavelength...

Im Focus: Magnetic vortices: Two independent magnetic skyrmion phases discovered in a single material

For the first time a team of researchers have discovered two different phases of magnetic skyrmions in a single material. Physicists of the Technical Universities of Munich and Dresden and the University of Cologne can now better study and understand the properties of these magnetic structures, which are important for both basic research and applications.

Whirlpools are an everyday experience in a bath tub: When the water is drained a circular vortex is formed. Typically, such whirls are rather stable. Similar...

Im Focus: Breaking the bond: To take part or not?

Physicists working with Roland Wester at the University of Innsbruck have investigated if and how chemical reactions can be influenced by targeted vibrational excitation of the reactants. They were able to demonstrate that excitation with a laser beam does not affect the efficiency of a chemical exchange reaction and that the excited molecular group acts only as a spectator in the reaction.

A frequently used reaction in organic chemistry is nucleophilic substitution. It plays, for example, an important role in in the synthesis of new chemical...

Im Focus: New 2D Spectroscopy Methods

Optical spectroscopy allows investigating the energy structure and dynamic properties of complex quantum systems. Researchers from the University of Würzburg present two new approaches of coherent two-dimensional spectroscopy.

"Put an excitation into the system and observe how it evolves." According to physicist Professor Tobias Brixner, this is the credo of optical spectroscopy....

Im Focus: Chemical reactions in the light of ultrashort X-ray pulses from free-electron lasers

Ultra-short, high-intensity X-ray flashes open the door to the foundations of chemical reactions. Free-electron lasers generate these kinds of pulses, but there is a catch: the pulses vary in duration and energy. An international research team has now presented a solution: Using a ring of 16 detectors and a circularly polarized laser beam, they can determine both factors with attosecond accuracy.

Free-electron lasers (FELs) generate extremely short and intense X-ray flashes. Researchers can use these flashes to resolve structures with diameters on the...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Leading experts in Diabetes, Metabolism and Biomedical Engineering discuss Precision Medicine

13.07.2018 | Event News

Conference on Laser Polishing – LaP: Fine Tuning for Surfaces

12.07.2018 | Event News

11th European Wood-based Panel Symposium 2018: Meeting point for the wood-based materials industry

03.07.2018 | Event News

 
Latest News

Microscopic trampoline may help create networks of quantum computers

17.07.2018 | Information Technology

In borophene, boundaries are no barrier

17.07.2018 | Materials Sciences

The role of Sodium for the Enhancement of Solar Cells

17.07.2018 | Power and Electrical Engineering

VideoLinks
Science & Research
Overview of more VideoLinks >>>