The Gait Analysis Laboratory, Department of Orthopaedic Surgery, Copenhagen University Hospital Hvidovre, Kettegaard Allé 30, 2650, Hvidovre, Denmark.
Knee Surg Sports Traumatol Arthrosc. 2013 Aug;21(8):1876-81. doi: 10.1007/s00167-012-2199-8. Epub 2012 Sep 12.
The purpose of the study was to investigate the biomechanics of the knee and hip joint during handball-specific side-cutting on the dominant and non-dominant leg. Understanding the sports-specific biomechanics may improve prevention measures and post-injury treatment.
Twenty-four young female elite handball players performed 5 handball side-cutting manoeuvres on the dominant and non-dominant legs. The local maxima of the joint moments in each plane, during the initial 100 ms following foot contact, were collected.
External knee moments of flexion, outward rotation and valgus-along with external hip moments of extension, abduction and internal rotation-were observed, coincidentally 30-40 ms after foot contact. No side-to-side asymmetries were found. The external moments observed support the injury mechanisms previously described in case studies of handball injuries.
The results underline the importance of implementing preventive exercises that increase activity of medial hamstrings, to match the external outward rotating knee moments and knee valgus moments, and increase activity of hip external rotators to match the external hip inward-rotating moment. Furthermore, the results may yield further information to the graft selection decision before ACL surgery.
Diagnostic studies, Level II.
本研究旨在探究惯用腿和非惯用腿进行手球专项变向切入时膝关节和髋关节的生物力学。了解运动专项的生物力学特征可能有助于改进预防措施和伤后治疗。
24 名年轻女性精英手球运动员在惯用腿和非惯用腿上各完成 5 次手球变向切入动作。收集了足触地后最初 100 毫秒内各平面关节力矩的局部最大值。
在足触地后 30-40 毫秒时，观察到膝关节的屈曲、外旋和外翻外侧力矩以及髋关节的伸展、外展和内旋外侧力矩，巧合的是，这些力矩与先前在手球损伤病例研究中描述的损伤机制一致。未发现侧间的不对称性。所观察到的外部力矩支持了先前在手球损伤病例研究中描述的损伤机制。
研究结果强调了实施预防性练习的重要性，以增加内侧腘绳肌的活动，从而匹配膝关节的外侧外旋力矩和膝关节外翻力矩，并增加髋关节外旋肌的活动，以匹配髋关节的外侧内旋力矩。此外，这些结果在手球运动员进行前交叉韧带手术前的移植物选择决策中可能提供进一步的信息。
诊断研究，II 级。
