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Related Experiment Video

Updated: Mar 15, 2026

A Test Bed to Examine Helmet Fit and Retention and Biomechanical Measures of Head and Neck Injury in Simulated Impact
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A Test Bed to Examine Helmet Fit and Retention and Biomechanical Measures of Head and Neck Injury in Simulated Impact

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Bicycle helmets work when it matters the most.

Bellal Joseph1, Asad Azim1, Ansab A Haider1

  • 1Division of Trauma, Emergency Surgery, Critical Care, and Burns, Department of Surgery, University of Arizona, Tucson, AZ, USA.

American Journal of Surgery
|September 7, 2016
PubMed
Summary
This summary is machine-generated.

Wearing bicycle helmets significantly reduces the risk of severe traumatic brain injury (TBI) and facial fractures in accidents. Helmet use also lowers the mortality rate for cyclists involved in bicycle-related incidents.

Keywords:
BicycleFacial fractureHead injuryHelmets

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Area of Science:

  • Trauma research
  • Public health and safety
  • Biomechanics of injury

Background:

  • Bicycle accidents frequently result in traumatic brain injuries (TBI).
  • Helmets are recognized as a protective measure against head injuries in cyclists.
  • The association between helmet use and TBI severity, facial fractures, and mortality requires further investigation.

Purpose of the Study:

  • To evaluate the impact of bicycle helmet use on the severity of traumatic brain injury (TBI).
  • To assess the association between helmet use and the occurrence of facial fractures.
  • To determine the effect of helmet use on mortality rates in bicycle-related accidents.

Main Methods:

  • Analysis of the 2012 National Trauma Data Bank for patients with intracranial hemorrhage from bicycle accidents.
  • Inclusion of 6,267 patients in the study cohort.
  • Application of regression analysis to determine the odds of severe TBI, facial fractures, and mortality based on helmet use.

Main Results:

  • Helmeted riders showed a 51% reduced odds of severe TBI (OR .49).
  • Helmet use was associated with a 44% reduction in mortality odds (OR .56).
  • A 31% reduction in the odds of facial fractures was observed in helmeted riders (OR .69).

Conclusions:

  • Bicycle helmet use is a critical factor in mitigating severe TBI.
  • Wearing helmets significantly reduces the incidence of facial fractures among cyclists.
  • Helmet use demonstrably saves lives, even in cases of intracranial hemorrhage following bicycle accidents.