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Parachuting from fixed objects: Descriptive study of 106 fatal events in BASE jumping 1981-2006
  1. Anton Westman (anton{at}worldwidewestman.com)
  1. Division of Surgery, Sweden
    1. Martin Rosén
    1. Division of Surgery, Sweden
      1. Patrik Berggren
      1. Division of Surgery, Sweden
        1. Ulf Björnstig
        1. Division of Surgery, Sweden

          Abstract

          Objective: Analyse characteristics of fatal incidents in fixed object sport parachuting (BASE jumping) and create a basis for prevention.

          Design: Descriptive epidemiological study.

          Setting: Worldwide.

          Patients: Data on reported fatal injury events (n=106) in the world 1981-2006 retrieved from the BASE Fatality List.

          Assessment of Risk Factors: Human, equipment and environmental factors.

          Main Outcome Measurements: Identification of typical fatal incident and injury mechanisms for each of the four fixed object types of BASE jumping (Building; Antenna; Span; Earth).

          Results: Human factors included parachutist free fall instability (loss of body control before parachute deployment), free fall acrobatics and deployment failure by the parachutist. Equipment factors included pilot chute malfunction and parachute malfunction. In cliff jumping (BASE object type E), parachute opening towards the object jumped was the most frequent eguipment factor. Environmental factors included poor visibility, strong or turbulent winds, cold and water. The overall annual fatality risk for all object types during the year 2002 was estimated at circa 1 fatality per 60 participants.

          Conclusions: The BASE jumping community can target risk factors with training and technical interventions. Rescue units can improve management of incidents from knowledge about the mechanisms we have described.

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