Doherty Cailbhe, Bleakley Chris, Hertel Jay, Caulfield Brian, Ryan John, Sweeney Kevin, Patterson Matthew R, Delahunt Eamonn
School of Public Health, Physiotherapy and Population Science, University College Dublin, Dublin, Ireland.
Sport and Exercise Sciences Research Institute, Ulster Sports Academy, University of Ulster, Newtownabbey, Co. Antrim, Northern Ireland.
J Orthop Res. 2015 Oct;33(10):1537-44. doi: 10.1002/jor.22915. Epub 2015 May 25.
To evaluate the adaptive movement and motor control patterns of a group with a 6-month history of first-time lateral ankle sprain (LAS) injury during a drop vertical jump (DVJ) task. Fifty-one participants with a 6-month history of first-time acute LAS injury and twenty controls performed a DVJ task. 3D kinematic and sagittal plane kinetic profiles were plotted for the lower extremity joints of both limbs for the drop jump (phase 1) and drop landing (phase 2) phases of the DVJ. Inter-limb symmetry and the rate of impact modulation (RIM) relative to bodyweight (BW) during both phases of the DVJ were also determined. LAS participants displayed bilateral increases in knee flexion and an increase in ankle inversion during phases 1 and 2, respectively. They also displayed reduced ankle plantar flexion on their injured limb during both phases of the DVJ (p < 0.05); increased inter-limb asymmetry of RIM was noted for both phases of the DVJ, while the moment-of-force profile exhibited bilaterally greater hip extensor dominance during phase 1. Participants with a 6-month history of first-time LAS display some movement patterns consistent with those observed in chronic ankle instability populations during similar tasks.
为评估首次外侧踝关节扭伤（LAS）6个月病史的一组人群在垂直下落跳（DVJ）任务中的适应性运动和运动控制模式。51名有首次急性LAS损伤6个月病史的参与者和20名对照组进行了DVJ任务。针对DVJ的下落跳（阶段1）和下落着地（阶段2）阶段，绘制了双下肢各关节的三维运动学和矢状面动力学曲线。还确定了DVJ两个阶段中双下肢对称性以及相对于体重（BW）的冲击调制率（RIM）。LAS参与者在阶段1和阶段2分别表现出双侧膝关节屈曲增加以及踝关节内翻增加。在DVJ的两个阶段，他们受伤肢体的踝关节跖屈也减少（p < 0.05）；在DVJ的两个阶段均观察到RIM的双下肢不对称性增加，而在阶段1，力矩曲线显示双侧髋关节伸肌优势更大。有首次LAS损伤6个月病史的参与者表现出一些与慢性踝关节不稳人群在类似任务中观察到的运动模式一致的运动模式。
