The Influence of Seat-Back and Head-Restraint Properties on the Head-Neck Motion During Rear-Impact
Paper in proceeding, 1993

One type of production-car front-seat with a head-restraint was tested in simulated low-velocity rear-impacts using a Hybrid III-dummy fitted with a modified neck (RID-neck). The seat was modified in various ways to test the influence of different seat properties on the head-neck motion during the impact. The results show that it is possible to influence the head-neck kinematics to a great extent by modifying the properties of the seat-back and the head-restraint. It was possible to virtually eliminate the neck extension motion during the rear-impact and this will hopefully result in a significant decrease of the neck injury risk in real world rearimpacts.

Seat Back

Whiplash Protection

Whiplash Injury

Head Restraint

Rear Impact


Mats Svensson

Department of Injury Prevention

Per Lövsund

Department of Injury Prevention

Stefan Larsson

Proc. 1993 Int IRCOBI Conf., Eindhoven, Netherlands


Areas of Advance


Subject Categories

Vehicle Engineering

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