Laboratory of Biomechanics of the Human Movement and Posture, Physical Therapy, Speech and Occupational Therapy Department, School of Medicine, University of São Paulo, São Paulo, Brazil.
Clinics (Sao Paulo). 2011;66(3):367-72. doi: 10.1590/s1807-59322011000300001.
Patellofemoral Pain Syndrome is one of the most common knee disorders among physically active young women. Despite its high incidence, the multifactorial etiology of this disorder is not fully understood.
To investigate the influence of Patellofemoral Pain Syndrome on plantar pressure distribution during the foot rollover process (i.e., the initial heel contact, midstance and propulsion phases) of the gait.
Fifty-seven young adults, including 22 subjects with Patellofemoral Pain Syndrome (30 ± 7 years, 165 ± 9 cm, 63 ± 12 kg) and 35 control subjects (29 ± 7 years, 164 ± 8 cm, 60 ± 11 kg), volunteered for the study. The contact area and peak pressure were evaluated using the Pedar-X system (Novel, Germany) synchronized with ankle sagittal kinematics.
Subjects with Patellofemoral Pain Syndrome showed a larger contact area over the medial (p = 0.004) and central (p = 0.002) rearfoot at the initial contact phase and a lower peak pressure over the medial forefoot (p = 0.033) during propulsion when compared with control subjects.
Patellofemoral Pain Syndrome is related to a foot rollover pattern that is medially directed at the rearfoot during initial heel contact and laterally directed at the forefoot during propulsion. These detected alterations in the foot rollover process during gait may be used to develop clinical interventions using insoles, taping and therapeutic exercise to rehabilitate this dysfunction.
髌股疼痛综合征是活跃年轻女性中最常见的膝关节疾病之一。尽管其发病率很高，但这种疾病的多因素病因尚未完全了解。
研究髌股疼痛综合征对步态中足滚动过程（即初始跟骨接触、中间步和推进阶段）中足底压力分布的影响。
57 名年轻成年人，包括 22 名髌股疼痛综合征患者（30 ± 7 岁，165 ± 9 cm，63 ± 12 kg）和 35 名对照组受试者（29 ± 7 岁，164 ± 8 cm，60 ± 11 kg）自愿参加了这项研究。使用 Pedar-X 系统（Novel，德国）评估接触面积和峰值压力，该系统与踝关节矢状面运动学同步。
与对照组相比，髌股疼痛综合征患者在初始接触阶段内侧（p = 0.004）和中央（p = 0.002）后足的接触面积更大，在推进阶段内侧前足的峰值压力更低（p = 0.033）。
髌股疼痛综合征与足滚动模式有关，在初始跟骨接触时，后足向内侧，在推进时前足向外侧。这些在步态中检测到的足滚动过程的变化可用于开发使用鞋垫、贴扎和治疗性运动等临床干预措施来康复这种功能障碍。
