Rehabilitation Science Postgraduation Progam - Augusto Motta University Centre (UNISUAM), Rio de Janeiro, Brazil.
Research Laboratory of Exercise Science, Centro de Educação Física Almirante Adalberto Nunes, Brazilian Navy, Rio de Janeiro, Brazil; Postgraduate Program in Operational Human Performance, Brazilian Air Force University, Rio de Janeiro, Brazil.
Knee. 2021 Dec;33:49-57. doi: 10.1016/j.knee.2021.08.031. Epub 2021 Sep 17.
Patients with patellofemoral pain (PFP) present pain, functional limitation, and alteration in knee proprioception.
To compare the knee joint position sense and lower extremity functionality between patients with PFP and controls. Secondarily, investigate the relationship between proprioceptive acuity and physical performance.
This is a matched case-control study including 48 patients with PFP and 48 healthy individuals matched by age, sex, weight, height, and limb dominance. The proprioceptive evaluation was performed using the joint position sense test (absolute error and relative error) and functionality was assessed using the Single-Leg Triple-Hop test and the Y-Balance Test. The groups were compared using the independent student's T-test. Proprioceptive acuity and physical performance correlations were determined by Pearson correlation coefficient.
Participants were on average 31 years old and 62.5% were men. There was no statistically difference for absolute and relative angular error between groups. Patients presented lower relative reached distance on the anterior direction of the Y-Balance Test than controls [patients=58.6 (6.6) % versus controls=61.7 (5.9) %, p=.020]. No differences between groups were found for other functional measures. Significant correlation was found between absolute angular error and anterior component at 60° (r=0.225, p=.028) and relative angular error at 60° with the posterolateral component of the Y- Balance Test (r=0.231, p=.024).
Proprioceptive acuity of patients with PFP was not reduced. The anterior direction of the Y-Balance Test was impaired compared to matched controls. Proprioceptive sense is related to dynamic balance but not to jump ability.
髌股疼痛（PFP）患者会出现疼痛、功能受限和膝关节本体感觉改变。
比较髌股疼痛患者与对照组之间的膝关节位置觉和下肢功能。其次，研究本体感觉敏锐度与身体表现之间的关系。
这是一项匹配的病例对照研究，包括 48 名髌股疼痛患者和 48 名年龄、性别、体重、身高和肢体优势相匹配的健康个体。本体感觉评估采用关节位置觉测试（绝对误差和相对误差），功能评估采用单腿三跳测试和 Y 平衡测试。使用独立学生 t 检验比较两组。通过 Pearson 相关系数确定本体感觉敏锐度和身体表现之间的相关性。
参与者的平均年龄为 31 岁，62.5%为男性。组间绝对和相对角误差无统计学差异。患者的 Y 平衡测试前向的相对到达距离小于对照组[患者=58.6（6.6）%比对照组=61.7（5.9）%，p=0.020]。其他功能测量两组间无差异。绝对角误差与 60°时前向成分（r=0.225，p=0.028）和相对角误差与 Y 平衡测试后外侧成分（r=0.231，p=0.024）之间存在显著相关性。
髌股疼痛患者的本体感觉敏锐度没有降低。与匹配对照组相比，Y 平衡测试的前向方向受损。本体感觉与动态平衡有关，但与跳跃能力无关。
