The effect of impact compliance, velocity, and location in predicting brain trauma for falls in sport

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Oeur, R. Anna¹; Hoshizaki, T. Blaine¹

The effect of impact compliance, velocity, and location in predicting brain trauma for falls in sport

Proceedings of the 2016 International IRCOBI Conference on the Biomechanics of Injury

Affiliations

¹School of Human Kinetics at University of Ottawa in Ottawa, Canada.
Abstract and keywords

Peak linear and angular acceleration are commonly used to measure concussion risk. In efforts to better understand the importance of loading factors affecting head dynamic response, the purpose of this study was to examine the effects of impact velocity, location, and compliance on head acceleration. A Hybrid III headform and modified neckform attached to a drop tower were subject to 4 impact velocities (1.5, 3.0, 4.5, 6.0 m/s) and 3 surfaces: steel, vinyl nitrile foam, and Rubatex R338 rubber foam to represent falls onto a hard surface, a helmeted fall (i.e. football helmet), and a gymnastics mat, respectively. Each combination of velocity and compliance were tested at front, front boss, side, and rear boss negative azimuth. Regression analysis were conducted for each impact location and revealed that compliance had a consistently stronger influence on head dynamic response than velocity.

Keywords: dynamic Response, fall events in sport, Hybrid III headform, impact variables
Links

URL: http://www.ircobi.org/wordpress/downloads/irc16/pdf-files/33.pdf

Cited Works (23)

Year	Entry
2011	Walsh ES, Rousseau P, Hoshizaki TB. The influence of impact location and angle on the dynamic impact response of a Hybrid III headform. Sports Eng. March 2011;13(3):135-143.
1943	Holbourn AHS. Mechanics of head injuries. Lancet. October 9, 1943;242(6267):438-441.
1982	Gennarelli TA, Thibault LE, Adams JH, Graham DI, Thompson CJ, Marcincin RP. Diffuse axonal injury and traumatic coma in the primate. Ann Neurol. 1982;12(6):564-574.
1987	Gennarelli TA, Thibault LE, Tomei G, Wiser R, Graham DI, Adams J. Directional dependence of axonal brain injury due to centroidal and non-centroidal acceleration. In: Proceedings of the 31st Stapp Car Crash Conference. November 9-11, 1987; New Orleans, LA. Warrendale, PA: Society of Automotive Engineers:49-53. SAE 872197.
1975	Padgaonkar AJ, Krieger KW, King AI. Measurement of angular acceleration of a rigid body using linear accelerometers. J Appl Mech. September 1975;42(3):552-556.
2012	Loyd AM, Nightingale RW, Song Y, Luck JF, Cutcliffe H, Myers BS, Bass CD. Impact properties of adult and ATD heads. In: Proceedings of the 2012 International IRCOBI Conference on the Biomechanics of Injury. September 12-14, 2012; Dublin, Ireland.552-564.
2012	Rowson S, Duma SM, Beckwith JG, Chu JJ, Greenwald RM, Crisco JJ, Brolinson PG, Duhaime A-C, McAllister TW, Maerlender AC. Rotational head kinematics in football impacts: an injury risk function for concussion. Ann Biomed Eng. January 2012;40(1):1-13.
1965	Gurdjian ES, Lissner HR, Patrick LM. Concussion: mechanism and pathology. In: Severy DM, ed. Proceedings of the 7th Stapp Car Crash and Field Demonstration Conference. 1963; University of California at Los Angeles. Springfield, IL: Charles C. Thomas; 1965:470-482.
2000	McIntosh AS, McCrory P, Comerford J. The dynamics of concussive head impacts in rugby and Australian rules football. Med Sci Sports Exer. December 2000;32(12):1980-1984.
2004	Hoshizaki TB, Brien SE. The science and design of head protection in sport. Neurosurgery. October 2004;55(4):956-967.
1981	Rimel RW, Giordani B, Barth JT, Boll TJ, Jane JA. Disability caused by minor head injury. Neurosurgery. 1981;9(3):221-228.
2011	Daneshvar DH, Nowinski CJ, McKee AC, Cantu RC. The epidemiology of sport-related concussion. Clin Sports Med. January 2011;30(1):1-17.
2011	Gavett BE, Stern RA, McKee AC. Chronic traumatic encephalopathy: a potential late effect of sport-related concussive and subconcussive head trauma. Clin Sports Med. January 2011;30(1):179-188.
1999	Newman J, Beusenberg M, Fournier E, Shewchenko N, Withnall C, King A, Yang K, Zhang L, McElhaney J, Thibault L, McGinnis G. A new biomechanical assessment of mild traumatic brain injury, I: methodology. In: Proceedings of the 1999 International IRCOBI Conference on the Biomechanics of Impact. September 23-24, 1999; Sitges, Spain.17-36.
2003	Pellman EJ, Viano DC, Tucker AM, Casson IR. Concussion in professional football: location and direction of helmet impacts—part 2. Neurosurgery. December 2003;53(6):1328-1341.
1972	Hodgson VR, Thomas LM. Effect of long-duration impact on head. In: Proceedings of the 16th Stapp Car Crash Conference. November 8-10, 1972; Detroit, MI. Warrendale, PA: Society of Automotive Engineers:292-295. SAE 720956.
1983	Hodgson VR, Thomas LM, Khalil TB. The role of impact location in reversible cerebral concussion. In: Proceedings of the 27th Stapp Car Crash Conference. October 17-19, 1983; San Diego, CA. Warrendale, PA: Society of Automotive Engineers:225-240. SAE 831618.
1960	Lissner HR, Lebow M, Evans FG. Experimental studies on the relation between acceleration and intracranial pressure changes in man. Surg Gynecol Obstet. September 1960;111(3):329-338.
2013	Patton DA, McIntosh AS, Kleiven S. The biomechanical determinants of concussion: finite element simulations to investigate brain tissue deformations during sporting impacts to the unprotected head. J Appl Biomech. December 2013;29(6):721-730.
2004	Zhang L, Yang KH, King AI. A proposed injury threshold for mild traumatic brain injury. J Biomech Eng. 2004;126(2):226-236.
2006	Langlois JA, Rutland-Brown W, Wald MM. The epidemiology and impact of traumatic brain injury: a brief overview. J Head Trauma Rehabil. September–October 2006;21(5):375-378.
2003	Cantu RC, Mueller FO. Brain injury-related fatalities in American football, 1945–1999. Neurosurgery. April 2003;52(4):846-853.
2003	Pellman EJ, Viano DC, Tucker A, Casson IR, Waeckerle JF. Concussion in professional football: reconstruction of game impacts and injuries. Neurosurgery. October 2003;53(4):799-814.

Cited By (2)

Year	Entry
2018	Oeur RA. The Effects of Reconstructed Head Impact Event Parameters on Risk of Sport Related Concussions [PhD thesis]. Ottawa, ON: University of Ottawa; 2018.
2022	Lowther S. Effect of Rule Changes Occurring Between 2003 and 2016 on Head Impact Frequency and Brain Strain Magnitude in North American Professional Ice Hockey [Master's thesis]. University of Ottawa; 2022.