Martin Philip S, StClair Vincent J, Willis Claire, Rickman Alastair C, Hynd David
Engineering & Assurance Division, Transport Research Laboratory (TRL), Wokingham, UK.
BBC Operations, BBC Birmingham Mailbox, Birmingham, UK.
Inj Prev. 2016 Aug;22(4):261-7. doi: 10.1136/injuryprev-2015-041857. Epub 2016 Jan 8.
No research establishing the effects of climbing helmet-mounted cameras on head injury biomechanics.
Establish the potential effects of climbing helmet-mounted cameras on the injury risks associated with falling object strikes and falls onto flat and angled surfaces.
Three experimental studies were developed via the adaptation of European helmet testing standards and regulations. Study 1 performed falling striker tests to the helmet, Study 2 performed linear headform drop tests onto a flat anvil and Study 3 performed oblique headform drop tests onto an anvil angled 15° from vertical. Three helmet categories (hard-shell, foam and hybrid) were impacted at three locations (vertex, front and side), using five camera mounting combinations and three control helmets. Data was collected for the forces, linear accelerations, rotational velocities and rotational accelerations experienced by the headform.
All helmet and camera combinations investigated by this project complied with current legislative performance criteria, while no combination exceeded published injury thresholds. No increase in head injury risk was observed for the forces transferred to the head during falling object strikes or with the linear accelerations experienced during falls onto flat and angled surfaces. Finally, although greater rotational head velocities and accelerations were observed with falls onto flat and angled surfaces, no injury threshold was exceeded by any investigated helmet and camera combination.
All helmet and camera combinations investigated by this project complied with current legislative performance criteria, while no combination exceeded published injury thresholds. Further research may be required to establish the effects of additional impact mechanism, helmet or camera mounting configurations.
尚无研究确定攀爬用头盔-mounted相机对头部损伤生物力学的影响。
确定攀爬用头盔-mounted相机对与物体坠落撞击以及坠落到平坦和倾斜表面相关的受伤风险的潜在影响。
通过改编欧洲头盔测试标准和法规开展了三项实验研究。研究1对头盔进行坠落撞击器测试，研究2将线性头模坠落到平坦砧座上，研究3将倾斜头模坠落到与垂直方向成15°角的砧座上。使用五种相机安装组合和三个对照头盔，对三种头盔类别（硬壳、泡沫和混合）在三个位置（头顶、前部和侧面）进行撞击。收集了头模所经历的力、线性加速度、旋转速度和旋转加速度的数据。
本项目研究的所有头盔和相机组合均符合当前立法性能标准，同时没有任何组合超过已公布的损伤阈值。在物体坠落撞击过程中传递到头部的力或坠落到平坦和倾斜表面过程中所经历的线性加速度方面，未观察到头损伤风险增加。最后，尽管在坠落到平坦和倾斜表面时观察到更大的头部旋转速度和加速度，但任何研究的头盔和相机组合均未超过损伤阈值。
本项目研究的所有头盔和相机组合均符合当前立法性能标准，同时没有任何组合超过已公布的损伤阈值。可能需要进一步研究来确定其他撞击机制、头盔或相机安装配置的影响。
