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首页> 外文期刊>Medicine and science in sports and exercise >Validation of a Helmet-based system to measure head impact biomechanics in ice hockey
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Validation of a Helmet-based system to measure head impact biomechanics in ice hockey

机译：验证基于头盔的系统，以测量冰球的头部冲击生物力学

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PURPOSE: This study aimed to quantify differences between head acceleration measured by a helmet-based accelerometer system for ice hockey and an anthropometric test device (ATD) to validate the system's use in measuring on-ice head impacts. METHODS: A Hybrid III 50th percentile male ATD head and neck was fit with a helmet instrumented with the Head Impact Telemetry (HIT) System for hockey and impacted at various speeds and directions with different interfaces between the head and helmet. Error between the helmet-based and reference peak accelerations was quantified, and the influence of impact direction and helmet-head interface was evaluated. Regression equations were used to reduce error. System-reported impact direction was validated. RESULTS: Nineteen percent of impacts were removed from the data set by the HIT System processing algorithm and were not eligible for analysis. Errors in peak acceleration between the system and ATD varied from 18% to 31% and from 35% to 64% for linear and rotational acceleration, respectively, but were reduced via regression equations. The relationship between HIT System and reference acceleration varied by direction (P < 0.001) and head-helmet interface (P = 0.005). Errors in impact azimuth were approximately 4%, 10%, and 31% for side, back, and oblique back impacts, respectively. CONCLUSIONS: This is the first comprehensive evaluation of peak head acceleration measured by the HIT System for hockey. The HIT System processing algorithm removed 19% of the impacts from the data set, the correlation between HIT System and reference peak resultant acceleration was strong and varied by head surface and impact direction, and the system error was larger than reported for the 6-degree-of-freedom HIT System for football but could be reduced via calibration factors. These findings must be considered when interpreting on-ice data.
机译：目的：本研究旨在量化通过用于冰球的头盔的加速度计系统和人体测量测试装置（ATD）测量的头部加速度之间的差异，以验证系统在测量冰头撞击中的使用。方法：杂交III 50百分位雄性ATD头部和颈部适用于带有用于曲棍球的头部冲击遥测（HIT）系统的头盔，并在头部和头盔之间的不同界面影响各种速度和方向。量化了头盔和参考峰值加速度之间的误差，并评估了冲击方向和头盔头界面的影响。回归方程用于减少错误。系统报告的影响方向被验证。结果：从击中系统处理算法中的数据集中删除了19％的冲击，并没有资格进行分析。系统和ATD之间的峰值加速度的误差可分别从18％到31％，分别为线性和旋转加速度的35％至64％，但通过回归方程减少。击中系统与参考加速度之间的关系（P <0.001）和头盔接口而变化（P = 0.005）。影响方位角的误差分别为侧面，背部和倾斜的反冲撞击的约4％，10％和31％。结论：这是由曲棍球击球系统测量的峰头加速度的第一次综合评价。命中系统处理算法从数据集中删除了19％的影响，击中系统与参考峰值所产生的加速度之间的相关性强烈，通过头表面和冲击方向变化，并且系统误差大于6度报告的报告-of-freedom击中机组系统，但可以通过校准因素减少。在解释冰数据时，必须考虑这些发现。

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