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Injury. 2003 Mar;34(3):207-14.

Sports injury or trauma? Injuries of the competition off-road motorcyclist.

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Division of Orthopaedics, University of Alabama Medical Center, and the Baptist Health Systems, 3317 Teakwood Road, Birmingham, AL 35226, USA.


A prospective analysis of the injuries of off-road competition motorcyclist at four International Six Day Enduro (ISDE) events was performed utilizing the injury severity score (ISS) and the abbreviated injury scale (AIS). Of the 1787 participants, approximately 10% received injuries that required attention from a medical response unit. The majority (85%) sustained a mild injury (mean ISS 3.9). Loss of control while jumping and striking immovable objects were important risk determinants for serious injury. Although seasoned in off-road experiences, mean 15.3 years, 54% of those injured were first year rookies to the ISDE event. Speeds were below 50 km/h in the majority of accidents (80%), and were not statistically correlated with severity. The most frequently injured anatomical regions were the extremities (57%). The most common types of injury were ligamentous (50%). Seventy-seven percent of all fractures were AIS grades 1 and 2. The most common fractures were those of the foot and ankle (36%). Multiple fractures involving different anatomical regions, or a combination of serious injuries was seen with only one rider. When compared to the injuries of the street motorcyclist, competition riders had lower AIS grades of head and limb trauma. Off-road motorcycle competition is a relatively safe sport with injury rates comparably less than those of contact sports such as American football and hockey.

[Indexed for MEDLINE]

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