Olney D B, Marsden A K
Injury. 1986 Nov;17(6):365-7. doi: 10.1016/0020-1383(86)90070-7.
During a 5-month period a study was made of motor vehicle occupants presenting at an Accident and Emergency department following an accident. Records were made of the incidence of neck injuries in relation to the presence of head restraints and the use of seat belts. There was a slight reduction in injuries when a head restraint was fitted but this difference did not achieve statistical significance. The incidence of neck injury was not increased if a seat belt was worn. It may be that the reason for the failure of head restraints to afford the expected protection is their inappropriate design and lack of adequate adjustability.
在5个月的时间里，对事故后前往急诊部的机动车驾乘人员进行了一项研究。记录了与头部保护装置的配备情况和安全带使用情况相关的颈部损伤发生率。安装头部保护装置时损伤略有减少，但这种差异未达到统计学显著性。佩戴安全带时颈部损伤的发生率并未增加。头部保护装置未能提供预期保护的原因可能是其设计不当且缺乏足够的可调节性。
