Blaine Hoshizaki

Chercheur reconnu internationalement pour ses travaux sur les traumatismes crâniens, Blaine Hoshizaki est le directeur du Laboratoire de neurotraumatologie de l’impact de l’Université d’Ottawa. 

Fort d’une expérience de 25 ans dans l’étude des liens entre impact physique et incidences et dommages neurologiques, le professeur Hoshizaki possède à son actif 171 publications à comité de lecture, plus de 290 conférences et 22 brevets de produits. Ayant mis à profit ses découvertes dans le développement de produits en tant que vice-président des entreprises CCM Hockey et Bauer Hockey et comme consultant pour les Canadiens de Montréal et les Rangers de New York, il est entré en 2011 au palmarès du Globe and Mail des 50 personnes les plus influentes dans le monde du sport. 

Invité aux audiences du comité sénatorial américain Concussion and the Marketing of Sports Equipment (112e congrès), il y a été présenté comme « un ingénieur en biomécanique et chercheur hors pair à l’origine d’excellents travaux sur les performances des casques et la compréhension des blessures crâniennes ».  

Ses équipes de conception technique ont conçu des casques pour une multitude de sports, du hockey sur glace au football, en passant par l’équitation et la crosse ainsi que le vélo, la motoneige et la moto. Le professeur Hoshizaki a par ailleurs siégé à la présidence du Comité ISO de normalisation pour la certification de l’équipement de hockey sur glace, et fait partie de plusieurs organismes tels que le NOCSAE et l’ASTM aux États-Unis, ainsi que l’Association canadienne de normalisation. 

Ses 25 ans d’expérience dans la recherche neurotraumatologique et le développement commercial lui font entrevoir de réelles possibilités pour une réduction globale des risques liés aux chocs, grâce à un suivi et un traitement précis et accessibles du traumatisme crânien.

Le professeur Hoshizaki accepte de nouveaux étudiants pour la supervision de thèse.

Laboratoire de science de l'impact des neurotraumatismes 

Vision : Les blessures à la tête et au cerveau deviendront un élément rare et sans importance des activités sportives et de loisirs.

Mission : Entreprendre des recherches qui contribuent de manière significative à la diminution de tous les types de traumatismes crâniens dans le sport.

1. Entreprendre des recherches pour mieux comprendre la relation entre les traumatismes crâniens et les lésions cérébrales.
2. Entreprendre des recherches qui permettent de comprendre comment se produisent les traumatismes crâniens afin de soutenir les programmes éducatifs visant à diminuer les blessures dans le sport.
3. Entreprendre des recherches visant à améliorer l'efficacité des stratégies de prévention des lésions cérébrales.

Publications complètes: ResearchGate

Articles dans les journaux (2020/19)

• Robidoux M, Kendall M, Laflamme Y, Post A, Karton C, Hoshizaki TB. Comparing Concussion Rates as Reported by Hockey Canada with Head Contact Events as Observed Across Minor Ice-Hockey Age Categories, 2020. Concussion In Press.  
• LE McMunn, TB Hoshizaki, M Robidoux, MD Gilchrist, C Karton, and A Post. Brain trauma profile comparison of midget and junior ice hockey players to inform safety and policy. ASTM International Journal, On Safety in Ice Hockey, 2020. In press
• Degrau Santiago A. Meehan, L. Champoux, T.B. Hoshizaki, M. Gilchrist, C.Karton, "Protective capacity of ice hockey helmets at different levels of striking compliance" Sports Engineering, 2020 In Press.
• Post A., L. Dawson, T.B. Hoshizaki, M. Gilchrist and M. Cusimano, “Development of a test method for adult ice hockey helmet evaluation” Computer Methods in Biomechanics and Biomedical Engineering, April 2020, doi.org/10.1080/10255842.2020
• Koncan D., M. Gilchrist, M. Vassilyadi & T.B. Hoshizaki “Simulated brain strains resulting from falls differ between concussive events of young children and adults” Computer Methods in Biomechanics and Biomedical Engineering 2020
• Clark M., T.B. Hoshizaki, A N. Annaidh and M. Gilchrist “Equestrian Helmet Standards: Do they Represent Real-World Accident Conditions?”, Annals of Biomechanical Engineering, 2020
• Kendall, Marshall; Oeur, R; Brien, Susan; Cusimano, Michael; Marshall, Shawn; Gilchrist, Michael; Hoshizaki, T Blaine, "Accident Reconstructions of Falls, Collisions, and Punches in Sport." Concussion 2020
• Chen W, Post A, Karton C, Robidoux M, Gilchrist M, Hoshizaki TB. 2020. A comparison of frequency and magnitude of head impacts between pee wee and bantam youth ice hockey. Sports Biomechanics. Accepted
• Taylor, K, Gischrist MD, Hoshizaki TB. 2020. “Evaluating the influence of the American football helmet on directional components of dynamic response and the magnitude of maximum principal strain.” Computer Methods in Biomechanical and Biomedical Engineering. In Press.
• Karton C, Hoshizaki TB, Gilchrist MD. “A novel repetitive head impact exposure measurement tool differentiates player position in National Football League.” Scientific Reports. 10:1200, 2020.
• Oeur Rachanna Anna, M Gilchrist and T.B. Hoshizaki “Parametric Study of Impact Parameters on Peak Head Acceleration and Strain for Collision Impacts in Sport” International Journal of Crashworthiness, 2019 doi: 10.1080/13588265.2019.1634336
• Dawson L, Koncan D, Post A, Zemek R, Gilchrist MD, Marshall S, Hoshizaki TB. “Biomechanical Comparison of Real-World Concussive Impacts in Children, Adolescents and Adults.” J Biomechanical Engineering, 2019. doi:10.1115/1.4045808.
• Clark JM, Adanty K, Post A, Hoshizaki TB, Clissold J, McGoldrick A, Hill J, Annaidh AN, Gilchrist MD. “Proposed injury thresholds for concussion in equestrian sports.” J Science and Medicine in Sport, 2019. doi.org/10.1016/j.jsams.2019.10.006
• De Grau, S, Post A, Hoshizaki TB, Gilchrist MD. “Effects of surface compliance on the dynamic response and strains sustained by a player’s helmeted head during ice hockey impacts. J Sports Engineering and Technology, 1-9, 2019. doi.org/10.1177/1754337119871866.
• Clark JM, Connor TA, Post A, Hoshizaki TB, Annaidh AN, Gilchrist MD. “Could a Compliant Foam Anvil Characterise the Biofidelic Impact Response of Equestrian Helmets?” J Biomechanical Engineering, 2019. In Press. doi:10.1115/1.4045403.
• Rochefort C, Cournoyer J, Post A, Hoshizaki TB, Zemek R, Sveistrup H. “Brain tissue strain and balance impairments in children following a concussion: An exploratory study.” Journal of Concussion, 3: 1-11, 2019.
• Post A, Hashim E, Kwan-Chun Ting W, Hoshizaki TB, Gilchrist MD, Cusimano MD. “A preliminary analysis of biomechanics and saccadic response for concussion.” TRAUMA, In Press. 2019. DOI: 10.1177/1460408619861026.
• Cournoyer J & Hoshizaki TB. “Abnormal Motor Response Associated With Concussive Injuries: Biomechanical Comparison Between Impact Seizures and Loss of Consciousness.” Journal of Athletic Training, 54(7) 765-771, 2019.
• Taylor K, Post A, Hoshizaki TB, Gilchrist MD (2019). “The effect of a novel impact management strategy on maximum principal strain for reconstructions of American football concussive events.” Journal of Sports Engineering and Technology, 233(4): 503-513, 2019.
• Taylor K, Hoshizaki TB, Gilchrist MD. “The influence of impact force redistribution and redirection on maximum principal strain for helmeted impacts.” Computer Methods in Biomechanics and Biomedical Engineering, 22(13): 1047-1060, 2019.
• Clark JM, Connor TA, Post A, Hoshizaki TB, Gilchrist MD. “The influence of impact surface on head kinematics and brain tissue response during impacts with equestrian helmets.” Sports Biomechanics, 2019. In Press. DOI: 10.1080/14763141.2019.1599062.
• Adanty K, Clark JM, Post A, Hoshizaki TB, Gilchrist MD. “Comparing Two Proposed Protocols to Test the Oblique Response of Cycling Helmets to Fall Impacts.” International Journal of Crashworthiness, 2019. In Press.
• Post A, Taylor K, Hoshizaki TB, Brien S, Cusimano MD, Marshall MD. “A biomechanical analysis of traumatic brain injury for slips and falls from height.” TRAUMA, 21(1), 27-34, 2019.
• Cournoyer J & Hoshizaki TB. “Head dynamic response and brain tissue deformation for boxing punches with and without a loss of consciousness.” Clinical Biomechanics, 67: 96-101, 2019.
• Cournoyer J & Hoshizaki TB. “Biomechanical comparison of concussions with and without a loss of consciousness in elite American football: implications for prevention.” Sports Biomechanics, 2019. https://doi.org/10.1080/14763141.2019.1600004.
• Post A, Hoshizaki TB, Karton C, Clark JM, Dawson L, Cournoyer J, Taylor K, Oeur RA, Gilchrist MD & Cusimano MD. “The biomechanics of concussion for ice hockey.” Computer Methods in Biomechanics and Biomedical Engineering, 22(6): 631-643, 2019.
• Post A, Dawson L, Hoshizaki TB, Gilchrist MD, Cusimano M. “The influence of impact source on variables associated with strain for impacts in ice hockey.” DOI: 10.1080/10255842.2019. 1588255.
• Koncan D, Gilchrist M, Vassilyadi M, Hoshizaki TB. “A three-dimensional finite element model of a 6-year-old child for simulating brain response from physical reconstructions of head impacts.” Journal of Sports Engineering and Technology, 233(2): 277-291, 2019.
• Oeur RA, Hoshizaki TB, Gilchrist MD. “Interaction of External Head Impact Parameters on Region and Volume of Strain for Collisions in Sport.” Journal of Computer Methods in Biomechanics and Biomedical Engineering, 22(7): 713- 726, 2019.
• Yeates KO, Tang K, Barrowman N, Freedman SB, Gravel J, Gagnon I, Sangha G, Boutis K, Beer D, Craig W, Burns E, Farion KJ, Mikrogianakis A, Barlow K, Dubrovsky AS, Meeuwisse W, Gioia G, Meehan WP, Beauchamp MH, Kamil Y, Grool AM, Hoshizaki B, Anderson P, Brooks BL, Vassilyadi M, Klassen T, Keightley M, Richer L, DeMatteo C, & Osmond MH, & Zemek R, for the Pediatric Emergency Research Canada (PERC) Predicting Persistent
• Postconcussive Problems in Pediatrics (5P) concussion team. “Derivation and initial validation of clinical phenotypes of children presenting with concussion acutely in the Emergency Department: Latent class analysis of a multicentre, prospective cohort, observational study.” Journal of Neurotrauma, 36(11): 1758- 1767, 2019.

Sélection de publications

• 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.
• Zemek R, Barrowman N, Freedman SB, Gravel J, Gagnon I, McGahern C, Aglipay M, Sangha G, Boutis K, Beer D, Craig W, Burns E, Farion KJ, Mikrogianakis A, Barlow K, Dubrovsky AS, Meeuwisse W, Gioia G, Meehan III WP, Beauchamp MH, Kamil Y, Grool AM, Hoshizaki B, Anderson P. Brooks BL, Yeates KO, Vassilyadi M, Klassen T, Keightley M, Richer L, DeMatteo C, Osmond MH. “Clinical risk score for persistent postconcussion symptoms among children with acute concussion in the ED.” JAMA. 2016, 315(10), 1014-1025.
• Post A, Karton C*, Hoshizaki TB, Gilchrist MD, Bailes J. “Evaluation of the protective capacity of baseball helmets for concussive impacts” Computer Methods in Biomechanics and Biomedical Engineering. 2016, 19(4), 366-375. doi.org/10.1080/10255842.2015.1029921.
  Author Contribution: Co-Author; *graduate student
• Post A, Hoshizaki TB, Gilchrist MD, Brien S, Cusimano MD, Marshall S. “The dynamic response characteristics of traumatic brain injury.” Analysis and Prevention. 79, 33-40, 2015.Author Contribution: Co-Author
• Rousseau, P*., & Hoshizaki, T. B. “Defining the effective impact mass of elbow and shoulder strikes in ice hockey.” Sports Biomechanics. 2015. 14(1), 57-67.
  Author Contribution: Co-Author; *graduate student
• 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. doi: 10.1115/1.4028983.
  Author Contribution: Co-Author
• Oeur R.A.*, 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, 123, 415-422, 2015.
  Author Contribution: Co-Author; *graduate student
• Post, A., Hoshizaki, T.B., Gilchrist, M.D., Brien, S., Cusimano, M. & Marshall, S. “Traumatic Brain Injuries: The influence of the direction of impact.” Neurosurgery, 76(1), 81-91, 2015.Author Contribution: Co-Author
• Post, A., Kendall, M.*, Koncan, D.*, Cournoyer, J.*, Hoshizaki, T.B., Gilchrist, M.D., Brien, S., Cusimano, M. & Marshall, S. “Characterization of Persistent Concussion Syndrome through injury reconstruction and Finite Element Modelling.” Journal of the Mechanical Behavior of Biomedical Materials: Special issue on TBI, 41, 325-335, 2015. doi: 10.1016/j.jmbbm.2014.07.034.
  Author Contribution: Co-Author;*graduate student
• Hoshizaki, T.B., Post, A., Oeur, R.A.* & Brien, S.E. “Current and future concepts in helmet and sports injury prevention.” Neurosurgery: Sports Concussion Supplement, 2014. 75(4), S136-S148.
  Author Contribution: Lead Author; *graduate student
• Post A., Hoshizaki T.B. and Gilchrist M.D., “Comparison of MADYMO and physical models for brain injury reconstruction”, International Journal of Crashworthiness, 2014. doi: 10.1080/13588265.2014.897413.
  Author Contribution: Co-Author
• Post A., Hoshizaki T.B., Gilchrist M.D., Brien S. Cusimano M. and Marshall S., “The influence of acceleration loading curve characteristics on traumatic brain injury”, Journal of Biomechanics, 47(5), 1074-1081, 2014. doi.org/10.1016/j.jbiomech.2013.12.026.
  Author Contribution: Co-Author; *graduate student
• Hoshizaki T.B., Post A., Kendall M.*, Karton C. and Brien S., “The relationship between head impact and brain trauma”, Special issue of the Journal of Neurology & Neurophysiology: Traumatic Brain Injury Diagnosis & Treatment, 5, 181, 2013.
  Author Contribution: Lead Author
• Karton C.*, Rousseau P.*, Vassilyadi M. and Hoshizaki T.B., “The evaluation of speed skating helmet performance through peak linear and rotational accelerations”, British Journal of Sports Medicine, 48, 46-50, 2013. doi:10.1136/bjsports-2012-091583
  Author Contribution: Co-Author; *graduate student
• Wright R, Post A.*, Hoshizaki T.B. and Ramesh K.T., “A multiscale computational approach to estimating axonal damage under inertial loading of the head”, Journal of Neurotrauma, 30(2), 102-118, 2013. doi:10.1089/neu.2012.2418
  Author Contribution: Co-Author;*graduate student
• Post A.* and Hoshizaki T.B., "Mechanisms of brain impact injuries and their prediction: A review”, Trauma, 14(4), 327-349, 2012.  doi:10.1177/1460408612446573
  Author Contribution: Co-Author; *graduate student
• Post A.*, Hoshizaki T.B. and Gilchrist M., "Finite element analysis of the effect of loading curve shape on brain injury predictors", Journal of Biomechanics, 45(4), 679-683, 2012.
  Author Contribution: Co-Author; * graduate student
• Hoshizaki T.B. Vassilyadi M., Post A.* and Oeur A.*, "Performance analysis of winter activity protection headgear for young children", Journal of Neurosurgery Pediatrics, 9 (2), 133-138, 2012.
  Author Contribution: Lead Author; * graduate student
• Walsh E.S.*, Rousseau P.* and Hoshizaki T.B., "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.
  Author Contribution: Co – Author; *graduate student
• Rousseau P.*, Hoshizaki T.B., Gilchrist M.D. and Post A.*, "Estimating the influence of neckform compliance on brain tissue strain during a helmeted impact", Stapp Car Crash Journal, 54, 12 pages, 2010.
  Author Contribution: Co – Author;* graduate student

Conférences et présentations

• Hoshizaki T.B. & Oeur RA.  (Invited speaker) “The Relationship between Impact Characteristics and Brain Tissue Strain Distributions”, Traumatic Brain Injury: Clinical, Pathological and Translational Mechanisms Santa Fe NM, USA Jan 24 – 27, 2016.
• Hoshizaki T.B. (Invited speaker) “Measuring Head Motions in Sports Angular Head Motions: their importance and measurement”, IRCOBI Lyon France, Sept 6 – 10, 2015.
• Hoshizaki T.B. (Invited speaker) “Frontiers of Biomechanics/Monitoring Concussions Sports Concussion Conference” – AAN Denver Colorado July 24-26, 2015.
• Hoshizaki T.B. (Invited speaker) “Measuring the biomechanical effects during concussion”, National Meeting of Neuropsychology Society USA, April 30, 2015, Atlanta, Georgia, USA.
• Hoshizaki T.B. (Invited speaker) “Mechanics of Head Injuries in Sport and Energy Management Characteristics of Helmet Technologies”. Sport Science Conference, January 15 – 16, 2015, London England
• Hoshizaki T.B. (Invited speaker) “Recommendations for a centric and Non-centric impact striker for American Football Helmet testing: NOCSAE.” Boston US. 2014 June 20.
• Hoshizaki TB, (Invited speaker) “Determining Forces to Head and Brain – PROs and CONS of Reconstruction”, October 2013, Rochester, Minnesota, Mayo Clinic 2nd Ice Hockey Summit II: Action on Concussions.
• Post A, Kendall M, Cournoyer J, Hoshizaki TB, Gilchrist MD, Brien S, Cusimano MD, Marshall S. (2015). A biomechanical comparison of focal traumatic brain injury and persistent post-concussive syndrome. 25th Congress of the International Society of Biomechanics, Glasgow, UK, July 12-16.
• Post A, Kendall M, Cournoyer J, Hoshizaki TB, Gilchrist MD, Brien S, Cusimano MD, Marshall S. (2015). A biomechanical comparison of focal traumatic brain injury and persistent post-concussive syndrome. 25th Congress of the International Society of Biomechanics, Glasgow, UK, July 12-16.
• Zanetti, K.A., Hoshizaki, T.B. & Gilchrist, M.D. (2014). The association between peak resultant linear acceleration and brain tissue deformation in American football-related head impacts. 7th World Congress of Biomechanics, July 6-11, Boston MA.