Sagnard Telma, Picot Brice, Forestier Nicolas
EA 7424 Interuniversity Laboratory of Human Movement Sciences, University Savoie Mont Blanc, Le Bourget du LacC, F-73376, France.
EA 7424 Interuniversity Laboratory of Human Movement Sciences, University Savoie Mont Blanc, Le Bourget du LacC, F-73376, France; French Society of Sport's Physiotherapist (SFMKS Lab), Asnieres sur/oise, F-95270, France.
Gait Posture. 2025 Jun;119:178-184. doi: 10.1016/j.gaitpost.2025.03.006. Epub 2025 Mar 15.
Joint position sense (JPS), balance assessments, and proprioceptive weighting tests offer insights into different dimensions of proprioception to evaluate deficits associated with chronic ankle instability (CAI). However, it remains unclear whether the outcomes of one test can be extrapolated to others.
Is proprioception measured by various tests impaired, and can the result obtained in one test be extrapolated to others in CAI and control participants?
Thirteen CAI and fifteen control participants were assessed on 1) JPS in dorsiflexion and plantarflexion by calculating absolute and constant repositioning errors. 2) Unipedal balance by measuring center of pressure (CoP) ellipse area and velocity. 3) Relative proprioceptive weighting (RPW) by measuring postural response to triceps surae and lumbar multifidus tendinous vibrations. Parameters were averaged and compared across groups using independent-sample t-tests, and correlations between parameters were analyzed using Pearson's r test.
No significant differences were observed between CAI and control groups for any parameter. In the CAI group only, plantarflexion absolute error was positively correlated with both CoP ellipse area (r = 0.57; P = 0.04) and anteroposterior (r = 0.57; P = 0.04) and mediolateral (r = 0.67; P = 0.01) CoP velocity. Conversely, in the control group only, plantarflexion constant error was positively correlated with RPW (r = 0.54; P = 0.04).
CAI participants do not systematically exhibit proprioceptive or balance impairments. Among CAI participants only, impaired proprioceptive acuity was associated with impaired balance, and participants maintained an ankle-steered strategy even if proprioceptive signals were altered. Practitioners should assess proprioceptive acuity and balance to target potential impairments associated with CAI.
关节位置觉（JPS）、平衡评估和本体感觉加权测试为本体感觉的不同维度提供了见解，以评估与慢性踝关节不稳（CAI）相关的缺陷。然而，一项测试的结果是否能外推至其他测试仍不明确。
在CAI患者和对照组中，通过各种测试测量的本体感觉是否受损，一项测试所得结果能否外推至其他测试？
对13名CAI患者和15名对照参与者进行了以下评估：1）通过计算绝对和恒定复位误差评估背屈和跖屈时的JPS。2）通过测量压力中心（CoP）椭圆面积和速度评估单腿平衡。3）通过测量对腓肠肌和腰多裂肌腱振动的姿势反应评估相对本体感觉加权（RPW）。使用独立样本t检验对参数进行分组平均和比较，并使用Pearson相关系数r检验分析参数之间的相关性。
CAI组和对照组在任何参数上均未观察到显著差异。仅在CAI组中，跖屈绝对误差与CoP椭圆面积（r = 0.57；P = 0.04）以及前后（r = 0.57；P = 0.04）和内外侧（r = 0.67；P = 0.01）CoP速度均呈正相关。相反，仅在对照组中，跖屈恒定误差与RPW呈正相关（r = 0.54；P = 0.04）。
CAI参与者并非系统性地表现出本体感觉或平衡受损。仅在CAI参与者中，本体感觉敏锐度受损与平衡受损相关，并且即使本体感觉信号改变，参与者仍维持踝关节主导策略。从业者应评估本体感觉敏锐度和平衡，以针对与CAI相关的潜在损伤。
