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.
Phys Ther Sport. 2010 Feb;11(1):30-4. doi: 10.1016/j.ptsp.2009.11.001. Epub 2009 Dec 14.
To investigate plantar pressure distribution in individuals with and without Patellofemoral Pain Syndrome during the support phase of stair descent.
Observational case-control study.
30 young adults with Patellofemoral Pain Syndrome and 44 matched controls.
Contact area, peak pressure and pressure-time integral (Novel Pedar-X system) were evaluated in six plantar areas (medial, central and lateral rearfoot; midfoot; medial and lateral forefoot) during stair descent.
Contact area was greater in the Patellofemoral Pain Syndrome Group at medial rearfoot (p = 0.019) and midfoot (p < 0.001). Subjects with Patellofemoral Pain Syndrome presented smaller peak pressures (p < 0.001).
The pattern of plantar pressure distribution during stair descent in Patellofemoral Pain Syndrome subjects was different from controls. This seems to be related to greater medial rearfoot and midfoot support. Smaller plantar loads found in Patellofemoral Pain Syndrome subjects during stair descent reveal a more cautious motor pattern in a challenging task.
研究髌股疼痛综合征患者和无髌股疼痛综合征患者在下楼梯支撑阶段的足底压力分布。
观察性病例对照研究。
30 名髌股疼痛综合征青年患者和 44 名匹配的对照组。
在六个足底区域（内侧、中央和外侧足跟；中足；内侧和外侧前足）评估下楼梯过程中的接触面积、峰值压力和压力-时间积分（新型 Pedar-X 系统）。
髌股疼痛综合征组在内侧足跟（p = 0.019）和中足（p < 0.001）的接触面积更大。髌股疼痛综合征患者的峰值压力较小（p < 0.001）。
髌股疼痛综合征患者在下楼梯过程中的足底压力分布模式与对照组不同。这似乎与更大的内侧足跟和中足支撑有关。髌股疼痛综合征患者在下楼梯过程中发现的较小的足底负荷揭示了在具有挑战性的任务中更谨慎的运动模式。
