Centre for Applied Sport and Exercise Sciences, School of Sport and Wellbeing, Faculty of Health & Wellbeing, University of Central Lancashire, Lancashire, UK.
Phys Ther Sport. 2018 Jul;32:48-53. doi: 10.1016/j.ptsp.2018.04.020. Epub 2018 May 3.
The aim of the current investigation was to examine the effects of orthoses with 5° medial and lateral wedges on knee joint kinetics during the stance phase of running.
Repeated measures.
Laboratory.
Twelve recreational runners.
Twelve male participants ran over a force platform at 4.0 m/s in three different conditions (medial orthotic, lateral orthotic and no-orthotic). Lower limb kinematics were collected using an 8-camera motion capture system allowing knee kinetics to be quantified using a musculoskeletal modelling approach. Differences in knee joint kinetics between orthotic conditions were examined using one-way repeated measures ANOVA.
The results showed that peak patellofemoral force was significantly increased in the medial (31.81 N/kg) and lateral (31.29 N/kg) wedged orthoses, in comparison to the no-orthotic (29.61 N/kg) condition. In addition, the peak knee adduction moment was significantly increased in the medial (1.10 Nm/kg) orthoses, in comparison to the lateral (0.87 Nm/kg) condition.
The results from this study indicate that lateral orthoses may be effective in attenuating runners risk from medial tibiofemoral compartment OA, but that wedged orthoses may enhance their risk from patellofemoral pain.
本研究旨在探讨在跑步支撑阶段，带有 5°内外楔形垫的矫形器对膝关节动力学的影响。
重复测量设计。
实验室。
12 名休闲跑步者。
12 名男性参与者以 4.0m/s 的速度在三种不同条件下（内侧矫形器、外侧矫形器和无矫形器）在力台上跑步。使用 8 摄像机运动捕捉系统收集下肢运动学数据，使用肌肉骨骼建模方法来量化膝关节动力学。使用单向重复测量方差分析检验矫形条件下膝关节动力学的差异。
结果表明，与无矫形器（29.61N/kg）条件相比，内侧（31.81N/kg）和外侧（31.29N/kg）楔形矫形器的髌股关节力峰值显著增加。此外，与外侧（0.87Nm/kg）矫形器相比，内侧（1.10Nm/kg）矫形器的膝关节内收力矩峰值显著增加。
本研究结果表明，外侧矫形器可能有效降低跑步者内侧胫骨股骨间室 OA 的风险，但楔形矫形器可能增加其髌股疼痛的风险。
