Constantinou Maria, Loureiro Aderson, Carty Christopher, Mills Peter, Barrett Rod
School of Allied Health Sciences and Menzies Health Institute Queensland, Griffith University, Gold Coast Campus, 4222, Queensland, Australia; School of Physiotherapy, Faculty of Health Sciences, Australian Catholic University, Banyo, Brisbane, Australia.
School of Allied Health Sciences and Menzies Health Institute Queensland, Griffith University, Gold Coast Campus, 4222, Queensland, Australia.
Gait Posture. 2017 Mar;53:162-167. doi: 10.1016/j.gaitpost.2017.01.017. Epub 2017 Jan 24.
The purpose of this case-control study was to characterise hip joint kinematics and moments during gait in people with mild-to-moderate hip osteoarthritis (OA). Eligible participants were allocated to the hip OA group (n=27) or the age-matched control group (n=26) based on radiographic and symptomatically defined inclusion criteria. Participants walked barefoot along a 10-m walkway at their self-selected gait speed. Trajectories of 43 markers attached to the trunk, pelvis, upper and lower limbs were recorded using a 12-camera motion capture system. Ground reaction force data were simultaneously collected. Individuals in the hip OA group had a 10% higher body mass, 13% slower self-selected walking speed, 10% shorter step length, 2% and 9% longer relative stance and double support duration (% stride) respectively, 41% lower sagittal plane hip range of motion, and 28% and 45% lower peak sagittal and transverse plane hip joint moments respectively during gait compared to controls (p<0.05). The finding that individuals with mild-to-moderate hip OA experienced less net hip joint loading over a reduced range of hip motion for a longer proportion of the gait cycle when walking at their preferred gait speed suggest that the mechanics of the hip joint are altered in hip OA, and could have implications for disease progression through altered mechano-biological processes within the joint.
这项病例对照研究的目的是描述轻至中度髋关节骨关节炎（OA）患者在步态过程中的髋关节运动学和力矩。根据影像学和症状学定义的纳入标准，符合条件的参与者被分配到髋关节OA组（n = 27）或年龄匹配的对照组（n = 26）。参与者以自己选择的步态速度赤脚沿着10米长的通道行走。使用12台摄像机的运动捕捉系统记录附着在躯干、骨盆、上肢和下肢的43个标记物的轨迹。同时收集地面反作用力数据。与对照组相比，髋关节OA组个体的体重高10%，自我选择的步行速度慢13%，步长短10%，相对站立时间和双支撑时间（%步幅）分别长2%和9%，矢状面髋关节活动范围低41%，步态过程中矢状面和横断面髋关节力矩峰值分别低28%和45%（p<0.05）。轻至中度髋关节OA患者在以其偏好的步态速度行走时，在更长的步态周期比例内，在髋关节活动范围减小的情况下经历的髋关节净负荷较小，这一发现表明髋关节OA患者的髋关节力学发生了改变，并且可能通过关节内机械生物学过程的改变对疾病进展产生影响。
