McConnell patellar taping on postural control of women with patellofemoral pain syndrome: randomized clinical trial

Abstract Introduction: The effects of McConnell patellar taping on the postural control of women with patellofemoral pain syndrome (PFPS) are controversial. Objective: To evaluate the effects of McConnell patellar taping on the static one-leg stance postural control and during squatting in women with PFPS. Method: A randomized, blinded clinical trial that comprised 40 women with PFPS, aged between 18 and 35 years. The study sample was allocated to two groups: McConnell patellar taping group (MPTG) and Placebo taping group (PTG). The analysis included the one-leg static support and squat on the lower limb with PFPS. The center of pressure (CoP) displacement parameters recorded by a force platform were analyzed using two-way ANOVA and Cohen’s d. Results: For the static postural control, no significant differences were found between the groups in terms of time or interaction (p>0.05); with small effect size. For the postural control during the one-leg squat, significant differences were found regarding the time of intervention for both groups, with reduced CoP parameters after the application of taping. However, the MPTG demonstrated a large effect size in frequency of oscillation and medium effect size in speed of oscillation, both during the squat exercise. Conclusion: McConnell patellar taping and placebo taping improved postural control during the one-leg squat. It should be observed that the changes and effect sizes determined for the MPTG were significantly higher compared to the PTG, emphasizing its clinical importance in the treatment of individuals with PFPS, during dynamic activities.

【摘要·引言】麦克康奈尔髌骨贴扎（McConnell patellar taping）对髌股疼痛综合征（patellofemoral pain syndrome, PFPS）女性患者姿势控制的影响尚存争议。
研究目的：探讨麦克康奈尔髌骨贴扎对髌股疼痛综合征女性患者静态单腿站立姿势控制，以及单腿深蹲过程中姿势控制的影响。
研究方法：本研究为随机双盲临床试验，共纳入40名年龄18~35岁的髌股疼痛综合征女性患者。研究对象被随机分为两组：麦克康奈尔髌骨贴扎组（McConnell patellar taping group, MPTG）与安慰剂贴扎组（Placebo taping group, PTG）。分析指标涵盖患侧下肢的单腿静态支撑与深蹲动作，通过测力台（force platform）记录的压力中心（center of pressure, CoP）位移参数，采用双向方差分析（two-way ANOVA）与科恩d值（Cohen’s d）进行统计分析。
研究结果：静态姿势控制方面，两组在干预时间与交互效应上均无显著差异（p>0.05），且效应量较小。单腿深蹲过程中的姿势控制方面，两组的干预时间均存在显著差异，贴扎后压力中心相关参数均有所降低。但麦克康奈尔髌骨贴扎组在深蹲动作中的振荡频率具有大效应量，振荡速度则具有中等效应量。
研究结论：麦克康奈尔髌骨贴扎与安慰剂贴扎均可改善单腿深蹲过程中的姿势控制。需注意的是，麦克康奈尔髌骨贴扎组的姿势控制变化量与效应量均显著高于安慰剂贴扎组，这凸显了其在髌股疼痛综合征患者动态活动治疗中的临床应用价值。