NEUROTRAUMA IMPACT SCIENCE LAB (NISL) 

Dr. Hoshizaki & NISL Lab

 

The NISL lab at the University of Ottawa is a world-leading research facility for the study of sport-related head injury. Professor Blaine Hoshizaki is the Director of the NISL lab and is one of a small handful of global experts on sport-induced head injuries. Dr. Hoshizaki leads an accomplished team of 20 scientists, researchers, and students who hold an array of Post-Doc, PhD and Master’s-level credentials and are responsible for some of the most important head-injury research results being published today.  

NISL Lab Overview
 

NISL RECONSTRUCTION METHODOLOGY

 

By performing extensive physical ‘crash-test’ simulations of known injury scenarios, then feeding the captured data into a Finite Element Analysis, NISL can reconstruct how the impact conditions cause injury to the brain in sport-specific situations. 

This unique methodology allows NISL to define a series of sport-specific injury mechanisms, each of which has a different profile of impact variables, which in turn enables the analysis of the resulting stress and strain on brain tissue. This understanding of how head injuries occur has been applied in the development of the Fluid Inside™ technology. 

 

NISL PUBLISHED RESEARCH

 

The contributions of NISL has led to the understanding of sport-specific injury mechanisms is peer-recognized with over 70 NISL-published scientific papers in refereed journals and over 200 presented research papers at scientific conferences involving head injuries in sport. NISL is globally recognized as a Neurotrauma research hub that regularly produces some of the most original — and cited — scientific findings on head injury.

 
  NISL research team

NISL research team

INDEX OF RESEARCH PUBLICATIONS (28 OUT OF 70+)

1. Hoshizaki TB, Karton C, Oeur RA, Kendall M, Dawson L & Post A. “An examination of the current National Operating Committee on Standards for athletic Equipment system and a new pneumatic ram method for evaluating American football helmet performance to reduce risk of concussion.” Journal of Sports Engineering and Technology. 2016, DOI: 10.1177/1754337116633376.

2. Nur S, Kendall M, Clark JM, Hoshizaki TB. “A Comparison of the capacity of ice hockey goaltender masks for protection from puck impact.” Sports Biomechanics. 2015, 14(4), 459-469.

3. Rousseau P & Hoshizaki TB. “Defining the effective impact mass of elbow and shoulder strikes in ice hockey.” Sports Biomechanics. 2015, 14(1), 57-67.

4. Post A, & Hoshizaki TB. “Rotational acceleration, brain tissue strain, and the relationship to concussion.” Journal of Biomechanical Engineering. 2015, 137(3), 030801-1-030801-9.

5. Oeur RA, Karton C, Post A, Rousseau P, Hoshizaki TB, Marshall S, Brien S, Smith A, Cusimano MD, & Gilchrist MD. “A comparison of the head dynamic response and brain tissue stress and strain using accident reconstructions for concussion, concussion with persistent post-concussive symptoms, and subdural hematoma.” Journal of Neurosurgery, 2015, 123, 415-422.

6. Hoshizaki TB, Post A, Oeur RA & Brien SE. “Current and future concepts in helmet and sports injury prevention.” Neurosurgery: Sports Concussion Supplement, 2014. 75(4), S136-S148.

7. Hoshizaki TB, Post A, Kendall M, Karton C & Brien S. “The relationship between head impact and brain trauma”, Special issue of the Journal of Neurology & Neurophysiology: Traumatic Brain Injury Diagnosis & Treatment, 2013, 5, 181.

8. Dawson L, Oeur A, Rousseau P & Hoshizaki TB. “The influence of impactor striker size on the dynamic response of a Hybrid III headform”, Journal of ASTM international, 2014. doi: 10.1520/STP155220120176

9. Rousseau P, Hoshizaki TB & Gilchrist MD. “A reconstruction of a puck impact to the head resulting in concussion in ice hockey”, Journal of ASTM international, 2014. doi: 10.1520/STP155220120159

10. Kendall M, Rousseau P & Hoshizaki TB. “The effect of shoulder pad design on reducing peak resultant linear and rotational acceleration in shoulder to head impacts”, Journal of ASTM international, 2014. doi:10.1520/STP155220120150

11. Oeur A, Hoshizaki TB & Gilchrist MD. “The influence of impact location and angle on brain tissue deformation”, Journal of ASTM international, 2014. doi: 10.1520/STP155220120160

12. Nishizaki K, Marino W, Hoshizaki TB, Post A, Oeur A, Walsh ES & Gilchrist MD. “Evaluation of dynamic response and brain deformation metrics using a centric/non-centric impact protocol using a monorail impacting system”, Journal of ASTM international, 2014. doi: 10.1520/STP15522012017669.

13. Karton C, Hoshizaki TB & Gilchrist MD. “The influence of inbound mass on the dynamic impact response of the Hybrid III headform and tissue deformation response characteristics”, Journal of ASTM international, 2014 doi: 10.1520/STP155220120175

14. Post A, Hoshizaki TB & Brien S. “Head injuries, measurement criteria and helmet design”, Routledge handbook of ergonomics in sports and exercise. New York: Routledge, 2013.

15. Post A, Oeur A, Walsh ES, Hoshizaki TB & Gilchrist MD. “A centric/non-centric impact protocol and finite element model methodology for the evaluation of American football helmets to evaluate risk of concussion”, Computer Methods in Biomechanics and Biomedical Engineering. 2013. Doi.org/10.1080/10255842.2013.766724

16. Post A, Oeur A, Hoshizaki TB & Gilchrist MD, “An examination of American football helmets using brain deformation metrics associated with concussion”, Materials & Design, 45, 653-662, 2013. Post A & Hoshizaki TB, "Mechanisms of brain impact injuries and their prediction: A review”, Trauma, 14(4), 327-349, 2012.

17. Kendall M, Walsh ES & Hoshizaki TB, "Comparison between Hybrid III and Hodgson-WSU headforms by linear and angular dynamic response", Journal of Sports Engineering and Technology, 0(0), 1-6, 2012.

18. Post A, Hoshizaki TB, Gilchrist MD & Brien S. "Analysis of the influence of independent variables used for reconstruction of a traumatic brain injury incident", Journal of Sports Engineering and Technology, 226(3/4), 290-298, 2012.

19. Post A, Hoshizaki TB & Gilchrist M. "Finite element analysis of the effect of loading curve shape on brain injury predictors", Journal of Biomechanics, 45(4), 679-683, 2012.

20. Walsh ES, Post A, Rousseau P, Kendall M, Karton C, Oeur A & Hoshizaki TB. "Dynamic Impact Response Characteristics of a Helmeted Hybrid III Headform Using a Centric and non-Centric Impact Protocol", Journal of Sports Engineering and Technology, 226(3-4): 220-225, 2012.

21. Hoshizaki TB, Walsh ES, Post A, Rousseau P, Kendall M, Karton C, Oeur A, Foreman S & Gilchrist MD. "The Application of Brain Tissue Deformation Values in Assessing the Safety Performance of Ice Hockey Helmets", Journal of Sports Engineering and Technology, 226(2/4), 226-236, 2012.

22. Post A, Walsh ES, Hoshizaki TB & Gilchrist MD. "Analysis of .loading curve characteristics on the production of brain deformation metrics", Journal of Sports Engineering and Technology, 226(3/4), 200-207, 2012.

23. Post A, Oeur A, Hoshizaki TB & Gilchrist MD. "Examination of the relationship of peak linear and peak angular acceleration to brain deformation metrics in hockey", Computer Methods in Biomechanics and Biomedical Engineering, 16(5), 511-519, 2011.

24. Walsh E.S., Rousseau P & Hoshizaki TB. "The influence of impact location and angle on the dynamic impact response of a Hybrid III headform", Sports Engineering, 13(3), 135 – 143, 2011. doi: 10.1007/s12283-011-0060-9.

25. Rousseau P, Hoshizaki TB, Gilchrist MD & Post A. "Estimating the influence of neckform compliance on brain tissue strain during a helmeted impact", Stapp Car Crash Journal, 54, 12 pages, 2010.

26. Coulson NR, Foreman SG & Hoshizaki TB, "Peak translational and rotational accelerations generated during reconstructed ice hockey impacts on a Hybrid III headform", Journal of American Standards of Testing and Materials International, 2009.

27. Hoshizaki TB & Post A. "Impact attenuation characteristics of engineered structures used in protective helmets", Journal of American Standards of Testing and Materials International, 6, 4 pages, 2009.

28. Rousseau P, Post A & Hoshizaki TB. "A comparison of peak linear and angular headform accelerations using ice hockey helmets", Journal of ASTM International, 6(1), 11 pages, 2009.