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  • Title: An analysis of maximum vehicle G forces and brain injury in motorsports crashes.
    Author: Weaver CS, Sloan BK, Brizendine EJ, Bock H.
    Journal: Med Sci Sports Exerc; 2006 Feb; 38(2):246-9. PubMed ID: 16531891.
    Abstract:
    PURPOSE: Traumatic brain injury from automobile crashes is a major source of trauma deaths. The investigation of crashes to understand factors of occupant injuries is an established practice. Our objective was to evaluate the association between vehicle G forces (G) sustained on impact and brain injury in motor sports crashes. METHODS: We analyzed data regarding Indy Racing League (IRL) car crashes from 1996 to 2003 and compared the likelihood of head injury in those drivers who were in a vehicle that sustained an impact of > or =50 G versus those with a lesser impact. The mean maximal G for those with head injury was compared with those without head injury. RESULTS: We analyzed 374 crashes. A driver in a crash with an impact of > or =50 G developed a head injury 16.0% (30/188) versus 1.6% (3/186) in those of <50 G (P < 0.001). The mean peak G for those with head injury was 79.6 (SD 28.5) versus 50.6 (SD 28.0) in those with no head injury (P < 0.001). CONCLUSION: Findings were that IRL car crashes with peak vehicle G > or = 50 were associated with the development of traumatic brain injuries.
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