Biomedical Engineering Program, COPPE, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil; School of Medical Sciences and Health of Juiz de Fora, SUPREMA, Juiz de Fora, Brazil.
Physical Education School of Brazilian Army, EsEFEx, Rio de Janeiro, Brazil.
Gait Posture. 2019 Sep;73:108-115. doi: 10.1016/j.gaitpost.2019.07.193. Epub 2019 Jul 11.
Approximately 25% of orthopedic knee conditions are related to patellofemoral pain (PFP), with young women being the most affected. It is thought that this condition is associated with modifications in the kinematics and muscle control patterns of the lower limb during weight-bearing support activities, which increases femur movement under the patella.
To compare kinematics and muscle induced acceleration patterns between PFP subjects and healthy controls during the preparation phase of the single leg triple hop test.
Biomechanical analysis was performed using OpenSim. Ten physically active women (23.2 ± 4 years, 59.3 ± 5.8 kg, and 1.63 ± 0.06 m) with no history of lower limb injury (CG) and 11 volunteers (23.5 ± 2 years, 55.4 ± 4.9 kg, and 1.66 ± 0.04 m) with PFP (PFPG) were recruited. The participants performed a series of single leg triple hop tests while the ground reaction forces and kinematic data were recorded.
Vector field statistical analysis indicated increased lumbar extension, anterior pelvic tilt, contralateral pelvic drop, and lower induced accelerations from the core and hip muscles in PFPG.
PFP volunteers presented with alterations in lumbar muscle control associated with a possible compensatory pelvic strategy to minimize knee extensor moment.
约 25%的骨科膝关节疾病与髌股疼痛（PFP）有关，而年轻女性受影响最大。人们认为这种情况与承重支撑活动中下肢运动学和肌肉控制模式的改变有关，这会增加髌骨下股骨的运动。
比较髌股疼痛患者和健康对照组在单腿三跳测试准备阶段的运动学和肌肉引起的加速度模式。
使用 OpenSim 进行生物力学分析。招募了 10 名身体活跃的女性（23.2±4 岁，59.3±5.8kg，1.63±0.06m），无下肢损伤史（CG），和 11 名志愿者（23.5±2 岁，55.4±4.9kg，1.66±0.04m）患有 PFP（PFPG）。参与者进行了一系列单腿三跳测试，同时记录地面反作用力和运动学数据。
矢量场统计分析表明，PFPG 中腰椎伸展、骨盆前倾、对侧骨盆下降以及核心和髋部肌肉引起的加速度增加。
PFP 志愿者的腰椎肌肉控制发生改变，可能与一种可能的补偿性骨盆策略有关，以最小化膝关节伸肌力矩。
