The most reliable impact protection system.

 

 

 

 
 

NEUROTRAUMA IMPACT SCIENCE LAB

The NISL lab at the University of Ottawa is a world-leading research facility for the study of sport-related head injury. NISL was founded in 2005 by Professor Blaine Hoshizaki with the following vision: “Head injuries will become a rare and inconsequential part of athletic and leisure activities.”  Dr. Hoshizaki is one of a small handful of global experts on sport-induced head injuries and 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.  

To date the laboratory has attracted over 3.5 million dollars in research support to better understand the relationship between brain trauma and neurodegenerative disease; provide an understanding of how minor traumatic brain injuries and traumatic brain injuries occur to support the educational programs to decrease injury; and improve the effectiveness of helmet safety standards designed to decrease the severity and number of head injuries in sport.


 

research partnerships:

UNIVERSITY OF OTTAWA
HARVARD UNIVERSITY
ST MICHAEL’S HOSPITAL
UNIVERSITY COLLEGE DUBLIN JOHN HOPKINS (past)
IMPERIAL COLLEGE  

 
 
 
 
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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. 

 
 
 
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NISL TEAM MEMBERS

 
 

BLAINE HOSHIZAKI, PH.D

  • Ph.D, Exercise Physiology, University of Illinois, Urbana Champaign, Illinois (1978)

  • M.A., Exercise Physiology, University of South Alabama, Mobile, Alabama (1975)

  • BPE, Bachelor of Physical Education, University of Calgary, Calgary, Alberta (1974)

ANDREW POST, PH.D

  • Research Scientist (2017)

  • Postdoctoral Fellow; Biomechanics of Brain Injury Research”,
    U Ottawa (2013 -2016)

  • Ph.D, Human Kinetics; Biomechanics, U Ottawa (2008 –2013)

  • M.Sc, Human Kinetics; Biomechanics, U Ottawa (2002 –2006)

  • B.Sc, Honours in Human Kinetics, U Ottawa (1998 – 2002)

CLARA KARTON, PH.D (C)

  • Ph.D, Dept of Human Kinetics, Biomechanics, U Ottawa (2014).

  • M.Sc., Dept.of Human Kinetics, Biomechanics, U Ottawa (2012).

  • B.Sc., Honours in Human Kinetics, Dept. of Human Kinetics,
    U Ottawa. (2010) Summa Cum Laude.

  • Fitness and Health Promotion Diploma, Department of Health Sciences, Loyalist College (2006).

KAREN TAYLOR, P.ENG, PH.D

  • PH.D (C), Biomechanics, U Ottawa (2017)

  • M.A.Sc., Mechanical Engineering, U Ottawa (2006)

  • B.A.Sc., Mechanical Engineering, U Ottawa, (2003)

  • B.Sc., Exercise Sciences (A.T.), Concordia University,
    Montreal (1998)

JANIE COURNOYER, PhD, CAT(C), ATC

  • Ph.D,  Faculty of Health Sciences, Human Kinetics,
    U Ottawa (2018) Thesis dissertation: Head impact severity associated with loss of consciousness and impact seizures in sport-related concussions.

  • M.Sc., Athletic Training, University of Florida, Gainesville,
    Florida (2013)

  • B.Sc., Exercise Sciences with specialization in Athletic Therapy, Concordia University, Montréal, Canada (2009)

TALIA IGNACY, M.SC

  • Research Assistant, NISL (2018)

  • M.Sc., Faculty of Health Sciences, Human Kinetics, U Ottawa (2017) Thesis dissertation: Biomechanics of Injury Events Associated with Diagnosed Concussion in Professional Men's Rugby League

 

INDEX OF RESEARCH PUBLICATIONS 

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.

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PUBLICATIONS

 

1. Computer Methods in Biomechanics and Biomedical Engineering (2019)

The Biomechanics of Concussion for Ice Hockey Head Impact Events.

2. Journal of Sports engineering and Technology (2019)

A three-dimensional finite element model of a 6-year-old child for simulating brain response from physical reconstructions of head impacts.

3. Journal of Sports engineering and Technology (2019)

Interaction of External Head Impact Parameters on Region and Volume of Strain for Collisions in Sport.

4. Journal of neurotrauma (2018)

Predicting Persistent Post-concussive 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. 

5. Sports engineering (2018)

Comparative analysis of Hybrid III neckform and an unbiased neckform.

6. Journal of biomechanical engineering (2018)

Distribution of brain strain in the cerebrum for ice hockey goaltender impacts.

7. Annals of biomedical engineering (2018)

Comparison of ice hockey goaltender helmets for concussion type impacts.

8. Computer methods in biomechanics and biomedical engineering (2018)

Brain tissue analysis of impacts to American football helmets.

9. International journal of crashworthiness (2018)

Interaction of Impact Parameters for Simulated Falls in Sport Using Three Different Sized Hybrid III Headforms.

10. Journal of sports engineering and technology (2018)

Comparison of two anthropometric test devices using brain motion.

11. Journal of the mechanical behavior of biomedical materials (2018)

Assessing women's lacrosse head impacts using finite element modeling.

12. sport engineering (2018)

Analysis of speed accuracy using video analysis software.

13. methods in biomechanics and biomedical engineering (2018)

Protective capacity of an ice hockey goaltender helmet for three events associated with concussion.

14. Journal of biomechanics (2017)

Peak linear and rotational acceleration magnitude and duration effects on maximum principal strain in the corpus callosum for sports impacts.

15. trauma (2017)

A biomechanical analysis of traumatic brain injury for slips and falls from height.

16. International journal of crashworthiness (2017)

Falls resulting in mild traumatic brain injury and focal traumatic brain injury: A biomechanical analysis.

17. Journal of neurosurgery:pediatrics (2017)

Pediatric concussion: Biomechanical differences between transient and PPCS persistent post concussive symptoms (>4 weeks) outcomes.

18. Journal of neurosurgery:pediatrics (2017)

A comparison in a youth population between those with and without a history of concussion using biomechanical reconstruction.

19. Sports engineering (2017)

The effect of acceleration signal processing for head impact numeric simulations.

20.trauma (2017)

The development of a threshold curve for the understanding of concussion in sport.

21. procedia engineering (2016)

Performance of Children and Adult Alpine Helmets under Characteristic Falling Conditions.

22. annals of biomedical engineering (2016)

Protective capacity of ice hockey helmets against different impact events.

23. Journal of sports engineering and technology (2016)

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.

24. jama (2016)

Clinical risk score for persistent postconcussion symptoms among children with acute concussion in the ED.

25. am j sports med (2016)

The ability of men’s lacrosse helmets to reduce the dynamic impact response for different striking techniques in women’s field lacrosse.

26. J ATHL TRAIN (2016)

The ability of American football helmets to manage linear acceleration with repeated high energy impacts.

27. COMPUTER METHODS IN BIOMECHANICS AND BIOMEDICAL ENGINEERING (2016)

Evaluation of the protective capacity of baseball helmets for concussive impacts.

28. SPORTS BIOMECHANICS (2015)

A Comparison of the capacity of ice hockey goaltender masks for protection from puck impact.

29. ANALYSIS AND PREVENTION (2015)

The dynamic response characteristics of traumatic brain injury.  

30. Sports BIOMECHANICS (2015)

Defining the effective impact mass of elbow and shoulder strikes in ice hockey.

31. Journal of biomechanical engineering (2015)

Rotational acceleration, brain tissue strain, and the relationship to concussion.

32. Journal of neurosurgery (2015)

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.

33. Journal of sports engineering and technology (2015)

Determination of high-risk impact sites on a Hybrid III headform by finite element analysis.

34. neurosurgery (2015)

Traumatic Brain Injuries: The influence of the direction of impact.

35. Journal of the Mechanical Behavior of Biomedical Materials: Special issue on TBI (2015)

Characterization of Persistent Concussion Syndrome through injury reconstruction and Finite Element Modeling.

36.neurosurgery: sports concussion supplement (2014)

Current and future concepts in helmet and sports injury prevention.

37. international journal of crashworthiness (2014)

Comparison of MADYMO and physical models for brain injury reconstruction.

38. Journal of Sports Engineering and Technology – HPD Special Issue (2014)

Differences in region specific brain tissue stress and strain due to impact velocity for simulated American football impacts.

39. Journal of ASTM INTERNATIONAL (2014)

The influence of impactor striker size on the dynamic response of a Hybrid III headform.

40. Journal of ASTM INTERNATIONAL (2014)

Protective capacity of ice hockey helmets against puck impacts.

41. Journal of ASTM INTERNATIONAL (2014)

Performance criteria or a child specific helmet.

42. Journal of ASTM INTERNATIONAL (2014)

The influence of inbound mass on the dynamic impact response of the Hybrid III headform and tissue deformation response characteristics.

43. Journal of ASTM INTERNATIONAL (2014)

The effect of shoulder pad design on reducing peak resultant linear and rotational acceleration in shoulder to head impacts.

44. Journal of ASTM INTERNATIONAL (2014)

Evaluation of dynamic response and brain deformation metrics using a centric/non-centric impact protocol using a monorail impacting system.

45. Journal of ASTM INTERNATIONAL (2014)

The influence of impact location and angle on brain tissue deformation.

46. JOURNAL OF BIOMECHANICS (2014)

The influence of acceleration loading curve characteristics on traumatic brain injury.

47. Special issue of the Journal of Neurology & Neurophysiology: Traumatic Brain Injury Diagnosis & Treatment (2013)

The relationship between head impact and brain trauma.

48. Journal of NEUROSURGERY (2013)

The influence of dynamic response and brain deformation metrics on the occurrence of subdural hematoma in different regions of the brain.

49. BRITISH JOURNAL OF SPORTS MEDICINE (2013)

The evaluation of speed skating helmet performance through peak linear and rotational accelerations.

50. Computer Methods in Biomechanics and Biomedical Engineering (2014)

A centric/non-centric impact protocol and finite element model methodology for the evaluation of American football helmets to evaluate risk of concussion.

51. JOURNAL OF NEUROTRAUMA (2013)

A multi-scale computational approach to estimating axonal damage under inertial loading of the head.

52. MATERIALS & DESIGN (2013)

An examination of American football helmets using brain deformation metrics associated with concussion.

53. TRAUMA (2012)

Mechanisms of brain impact injuries and their prediction: A review.

54. JOURNAL OF NEUROSURGERY (2012)

Letter to the Editor Helmets.  

55. JOURNAL OF SPORTS ENGINEERING AND TECHNOLOGY (2012)

Comparison between Hybrid III and Hodgson-WSU headforms by linear and angular dynamic response.

56. JOURNAL OF SPORTS ENGINEERING AND TECHNOLOGY (2012)

Analysis of the influence of independent variables used for reconstruction of a traumatic brain injury incident.

57. JOURNAL OF BIOMECHANICS (2012)

Finite element analysis of the effect of loading curve shape on brain injury predictors.

58. JOURNAL OF ASTM INTERNATIONAL (2012)

The influence of headform circumference and mass on alpine ski helmet performance in laboratory tests.

59. JOURNAL OF NEUROSURGERY PEDIATRICS (2012)

Performance analysis of winter activity protection headgear for young children.

60. JOURNAL OF ASTM INTERNATIONAL (2012)

Comparison between Hybrid III headforms by linear and angular dynamic impact response characteristics.

61. Journal of sports engineering and technology (2012)

Dynamic Impact Response Characteristics of a Helmeted Hybrid III Headform Using a Centric and non-Centric Impact Protocol.

62. Journal of sports engineering and technology (2012)

The Application of Brain Tissue Deformation Values in Assessing the Safety Performance of Ice Hockey Helmets.

63. JOURNAL OF SPORTS ENGINEERING AND TECHNOLOGY (2012)

Analysis of loading curve characteristics on the production of brain deformation metrics.

64. JOURNAL OF ASTM INTERNATIONAL (2014)

Computer Methods in Biomechanics and Biomedical Engineering.

65. SPORTS ENGINEERING (2011)

The influence of impact location and angle on the dynamic impact response of a Hybrid III headform.

66. STAPP CAR CRASH JOURNAL (2010)

Estimating the influence of neckform compliance on brain tissue strain during a helmeted impact.

67. JOURNAL OF ENGINEERING MEDICINE (2009)

Deformation mechanisms and impact attenuation characteristics of thin-walled collapsible air chambers for head protection.

68. JOURNAL OF SPORTS ENGINEERING AND TECHNOLOGY (2009)

The influence of deflection and neck compliance on the impact dynamics of a hybrid III head form.

69. JOURNAL OF SPORTS ENGINEERING AND TECHNOLOGY (2009)

The effects of impact management materials in ice hockey helmets on head injury criteria.

70. Journal of American Standards of Testing and Materials International (2009)

Peak translational and rotational accelerations generated during reconstructed ice hockey impacts on a Hybrid III headform.

71. Journal of American Standards of Testing and Materials International (2009)

Impact attenuation characteristics of engineered structures used in protective helmets.

72. JOURNAL OF ASTM INTERNATIONAL (2009)

Development of a new methodology capable of characterizing the contribution of a controlled venting system to impact attenuation in chamber structures for head protection.

73. JOURNAL OF ASTM INTERNATIONAL (2009)

A comparison of peak linear and angular headform accelerations using ice hockey helmets.

74. EUROPEAN JOURNAL OF SPORT SCIENCE (2008)

Compressive properties of helmet materials subjected to dynamic impact loading of various energies.

75. International Journal of Sports Science and Engineering (2008)

A comparison between vinyl nitrile foam and new air chamber technology on attenuating impact energy for ice hockey helmets.

76. neurosurgery (2004)

The history, science and future of head protection in sport.

77. sports engineering (2000)

Effect of local shell geometry and material properties on impact attenuation of ice hockey helmets.

78. journal of science and medicine in sports (2018)

Concussive convulsion and unilateral pontine lesion in an amateur Rugby league player.

79. proceedings of the ircobi conference (2017)

Helmet construction influences brain strain patterns for events causing concussion in youth ice hockey.  

80. proceedings of the ircobi conference (2016)

Comparison of helmeted head impact in youth and adult ice hockey.

81. proceedings of the ircobi conference (2016)

The Effect of Impact Compliance, Velocity, and Location in Predicting Brain Trauma for Falls in Sport.

82. proceedings of the ircobi conference (2016)

Dynamic head response and maximum principal tissue strain for helmeted (American football) and non-helmeted impacts for 5 locations and 4 directions.

83. proceedings of the ircobi conference (2016)

The Association among Injury Metrics for Ice Hockey Goaltender Impacts.

84. Proceedings of 34th International Conference on Biomechanics in Sports (2016)

Effect of impact surface on equestrian falls. 

85. Proceedings of 34th International Conference on Biomechanics in Sports (2016)

Impact frequency validation of head impact sensor technology for use in sport.

86. Proceedings of 34th International Conference on Biomechanics in Sports (2016)

Measurement accuracy of a head impact monitoring sensor in sport.

87. proceedings of the ircobi conference (2015)

Determining the Relationship between Linear and Rotational Acceleration and MPS for Different Magnitudes of Classified Brain Injury Risk in Ice Hockey.

88. Proceedings of Mayo Clinic Ice Hockey Summit II (2013)

Zero Tolerance for Head Hits and Fighting.

89. proceedings of the ircobi conference (2014)

Analysis of the protective capacity of ice hockey helmets in a concussion injury reconstruction.

90. proceedings of the ircobi conference (2014)

Linear and angular acceleration responses of American football, lacrosse, and ice hockey helmets subject to low-level impacts.

91. proceedings of the ircobi conference (2014)

Dynamic Impact Response and Predicted Brain Tissue Deformation Comparisons for an Impacted Hybrid III Headform With and Without a Neckform and Torso Masses.

92. proceedings of the ircobi conference (2013)

Identifying risk profiles for player positions in American football using physical and finite element modeling reconstructions.

93. proceedings of the ircobi conference (2013)

Comparison of dynamic versus static head impact reconstruction methodology by means of dynamic impact response and brain deformation metrics.

94. Proceedings of Helmet Performance and Design Conference (2013)

The influence of velocity on injury risk in American football.

95. International Research Council on Biomechanics of Injury (2012)

A Comparison of Dynamic Impact Response and Brain Deformation of Head Impact Reconstructions Representing Three Mechanisms of Head Injury in Ice Hockey.

96. International Research Council on Biomechanics of Injury (2012)

The Influence of Centric and Non-Centric Impacts to American Football Helmets on the Correlation Between Commonly Used Metrics in Brain Injury Research.

97. Procedia Engineering (2010)

Evaluation of American football helmet performance using finite element modeling.

98. Materials and Science in Sports (2001)

Shock Absorbing Effectiveness of Hockey Helmet Liner Foams After Exposure to Repeated Impacts.

99. university of zurich (2000)

International Symposium on Medicine and Science in Ice Hockey.

100. Safety in Ice Hockey Third Volume (2000)

Comparison of International Safety Standards for Ice Hockey Helmets.

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