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受害者的身体姿势和攻击者的性别对削减攻击的影响:一项生物力学研究
Shangxiao Li1, Shufang Yuan2, Yi Shi3
1Research Center for Sports Psychology and Biomechanics, China Institute of Sport Science, Beijing, China.
Frontiers in bioengineering and biotechnology
|September 18, 2024
概括
在模拟的部切割中,受害者的姿势没有改变伤害严重程度,但犯罪者的性别影响了生物力学. 与女性相比,男性参与者表现出不同的运动模式和肌肉激活,影响了切割动态.
科学领域:
- 法医生物力学法医生物力学
- 创伤分析是一项创伤分析.
- 刑事调查是一项刑事调查.
背景情况:
- 尖物伤害是暴力死亡的重要原因.
- 有限的研究存在于受害者的姿势和事者的性别在尖物伤害的生物力学影响.
研究的目的:
- 根据受害者的身体姿势 (站立 vs 仰卧) 对模拟的部切割的生物力学差异进行调查.
- 评估犯罪者的性别对切割生物力学的影响.
主要方法:
- 12名男性和12名女性参与者使用中国厨房刀对一个人偶进行了模拟的部切割.
- 收集了动力学,动力学和表面电肌学 (sEMG) 数据.
- 分析了站立和躺卧的木偶位置的数据.
主要成果:
- 受害者的姿势 (站立与卧卧) 在接触时间,肩膀和部速度以及肌肉激活 (RMS和iEMG) 中显示出显著的差异.
- 与女性相比,男性参与者表现出更高的速度 (肩膀,肘部,手腕),切割速度,力量和能量.
- 在多个肌肉群中观察到肌肉激活 (RMS和iEMG) 的性别差异.
结论:
- 虽然伤害的严重程度 (切割速度,力,能量) 在各种姿势中是相似的,但行动模式显著不同.
- 犯罪者的性别似乎对切割动态有更大的影响,可能与体重差异有关.
- 调查结果为法医分析,犯罪重建和法律诉讼提供了定量数据.
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