Department of Trauma Surgery, University of Duisburg-Essen, Germany.
Department of Orthopedics, University Hospital Essen, Germany.
Int J Sports Med. 2014 May;35(5):412-7. doi: 10.1055/s-0033-1353167. Epub 2014 Jan 7.
The cervical spine of breakdancers is at great risk due to reversed body loading during headspin manoeuvers. This study focused on the cervical biomechanics of breakdancers and a correlation with neck pain. A standardized interview and biomechanical testing of the cervical spine of 25 participants with "headspin" ability ages 16-34 years and an age-matched cohort of 25 participants without any cervical spine problems was conducted. Neck pain history, Neck Disability Index (NDI), cervical range of motion (CROM) and cervical torque were recorded. The "headspin" group reported significantly better subjective fitness, more cervical complaints, higher pain intensity, a longer history of neck pain and a worse NDI compared to the "normal" collective. The "headspin" group showed a 2-2.5 times higher rate of neck pain than the normal population, with increased cervical flexion (p<0.05) and increased cervical torque in all planes (p<0.001). The CROM showed a negative moderate to strong correlation with NDI, pain intensity and history of neck pain. Sports medicine practitioners should be aware of headspin maneuver accidents that pose the risk of fractures, dislocations and spinal cord injuries of breakdancers.
由于头部旋转动作会导致身体反向负荷，因此 breaking 舞者的颈椎面临很大的风险。本研究重点关注 breaking 舞者的颈椎生物力学及其与颈部疼痛的相关性。对 25 名具有“头部旋转”能力的年龄在 16-34 岁的参与者和 25 名无任何颈椎问题的年龄匹配对照组进行了标准化访谈和颈椎生物力学测试。记录了颈部疼痛史、颈部残疾指数（NDI）、颈椎活动范围（CROM）和颈椎扭矩。与“正常”组相比，“头部旋转”组报告的主观健康状况明显更好，颈椎问题更多，疼痛强度更高，颈部疼痛史更长，NDI 更差。“头部旋转”组的颈部疼痛发生率比正常人群高 2-2.5 倍，颈椎前屈度增加（p<0.05），所有平面的颈椎扭矩均增加（p<0.001）。CROM 与 NDI、疼痛强度和颈部疼痛史呈负中度至强相关性。运动医学从业者应该意识到头部旋转动作可能导致 breaking 舞者骨折、脱位和脊髓损伤的风险。
