December 2012, Volume 40, Issue 12, pp 2512-2518,
Open Access This content is freely available online to anyone, anywhere at any time.
Date: 04 Oct 2012
The Virginia Tech Response
We believe that Dr. Albert King’s letter regarding the STAR system paper22 is not scientifically based, factually incorrect, and illustrates that he does not understand the STAR system’s methodology. All of our research from Virginia Tech on this subject has been peer reviewed and published in open journals. In contrast, Dr. King bases his comments on a single reference to an internal graduate student thesis that has not been peer reviewed, has not been published in a journal, and which is not publicly available. This is not how the scientific process works.
While studying our comments, we ask the reader to keep in mind that all of this debate comes down to a very simple question: do you want to buy a helmet that reduces head acceleration? The STAR system is a complex experimental methodology that combines exposure and injury risk based on current scientific knowledge. Simply stated, it provides independent data to consumers to illustrate which helmets lower head acceleration....
This comment refers to the article available at: http://dx.doi.org/10.1007/s10439-012-0659-4.
Collins, M., M. R. Lovell, G. L. Iverson, T. Ide, and J. Maroon. Examining concussion rates and return to play in high school football players wearing newer helmet technology: a three-year prospective cohort study. Neurosurgery 58(2):275–286; discussion 275–286, 2006.
Crisco, J. J., B. J. Wilcox, J. T. Machan, T. W. McAllister, A. C. Duhaime, S. M. Duma, S. Rowson, J. G. Beckwith, J. J. Chu, and R. M. Greenwald. Magnitude of head impact exposures in individual collegiate football players. J. Appl. Biomech. 28(2):174–183, 2012.PubMed
Greenwald, R. M., J. T. Gwin, J. J. Chu, and J. J. Crisco. Head impact severity measures for evaluating mild traumatic brain injury risk exposure. Neurosurgery 62(4):789–798; discussion 98, 2008.
Guskiewicz, K. M., J. P. Mihalik, V. Shankar, S. W. Marshall, D. H. Crowell, S. M. Oliaro, M. F. Ciocca, and D. N. Hooker. Measurement of head impacts in collegiate football players: relationship between head impact biomechanics and acute clinical outcome after concussion. Neurosurgery 61(6):1244–1253, 2007.PubMedCrossRef
King, A. I., K. H. Yang, L. Zhang, W. Hardy, and D. C. Viano. Is head injury caused by linear or angular acceleration? Proceedings of the International Research Conference on the Biomechanics of Impact (IRCOBI). 2003.
Mihalik, J. P., D. R. Bell, S. W. Marshall, and K. M. Guskiewicz. Measurement of head impacts in collegiate football players: an investigation of positional and event-type differences. Neurosurgery 61(6):1229–1235; discussion 35, 2007.
Newman, J. A., M. C. Beusenberg, E. Fournier, N. Shewchenko, C. Withnall, A. I. King, K. Yang, L. Zhang, J. McElhaney, L. Thibault, and G. McGinnes. A new biomechanical assessment of mild traimatic brain injury. Part 1: Methodology. Proceedings of the International Research Conference on the Biomechanics of Impacts (IRCOBI), 1999, pp. 17–36.
Pellman, E. J., D. C. Viano, A. M. Tucker, I. R. Casson, and J. F. Waeckerle. Concussion in professional football: Reconstruction of game impacts and injuries. Neurosurgery 53(4):799–812; discussion 812–814, 2003.
Rowson, S., J. G. Beckwith, J. J. Chu, D. S. Leonard, R. M. Greenwald, and S. M. Duma. A six degree of freedom head acceleration measurement device for use in football. J. Appl. Biomech. 27(1):8–14, 2011.PubMed
Rowson, S., and S. M. Duma. National impact database—adult football helmet ratings—May 2012. http://www.sbes.vt.edu/nid.php. 2012.
Schnebel, B., J. T. Gwin, S. Anderson, and R. Gatlin. In vivo study of head impacts in football: a comparison of national collegiate athletic association division I versus high school impacts. Neurosurgery 60(3):490–5; discussion 5–6, 2007.
Takhounts, E. G., S. A. Ridella, V. Hasija, R. E. Tannous, J. Q. Campbell, D. Malone, K. Danelson, J. Stitzel, S. Rowson, and S. Duma. Investigation of traumatic brain injuries using the next generation of simulated injury monitor (simon) finite element head model. Stapp Car Crash J. 52:1–31, 2008.
Takhounts, E. G., V. Hasija, S. A. Ridella, S. Rowson, and S. M. Duma. Kinematic rotational brain injury criterion (bric). Enhanced Safety of Vehicles 11-0263-0, 2011.
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