Cerny K
Department of Physical Therapy, College of Health and Human Services, California State University, Long Beach 90840-5603, USA.
Phys Ther. 1995 Aug;75(8):672-83. doi: 10.1093/ptj/75.8.672.
The purpose of this study was to determine which of selected exercises with and without the feet free to move would enhance vastus medialis oblique muscle (VMO) activity over that of the vastus lateralis muscle (VL) and whether the use of taping would increase VMO activity.
Twenty-one subjects without patellofemoral pain (PFP) syndrome and 10 subjects with PFP syndrome, aged 19 to 43 years (X = 26, SD = 7), participated.
Subjects were studied for the normalized, integrated electromyographic (IEMG) activity of their VMO, VL, and adductor magnus muscle (subjects without PFP syndrome) and the VMO/VL ratio using wire electrodes.
One exercise demonstrated greater activation of the VMO over the VL when compared with similar exercises in subjects without PFP syndrome. The mean VMO/VL activity ratio for terminal knee extension was 1.2 (SD = 0.5) with the hip medially rotated and 1.0 (SD = 0.4) with the hip laterally rotated. Although subjects reported that patellar taping decreased pain 94% during the step-down exercise, the VMO/VL ratio was not changed.
The results suggest that neither exercises purported to selectively activate VMO activity nor patellar taping improve the VMO/VL ratio over similar exercises.
本研究的目的是确定在所选练习中，足部自由移动和不自由移动的情况下，哪种练习能比股外侧肌（VL）更能增强股内侧斜肌（VMO）的活动，以及使用贴扎是否会增加VMO的活动。
21名无髌股疼痛（PFP）综合征的受试者和10名患有PFP综合征的受试者参与了研究，年龄在19至43岁之间（X = 26，标准差 = 7）。
使用线状电极研究受试者VMO、VL和大收肌（无PFP综合征的受试者）的标准化积分肌电图（IEMG）活动以及VMO/VL比值。
与无PFP综合征的受试者进行的类似练习相比，一种练习显示出VMO比VL有更大的激活。髋关节内旋时终末伸膝的平均VMO/VL活动比值为1.2（标准差 = 0.5），髋关节外旋时为1.0（标准差 = 0.4）。尽管受试者报告在下行练习期间髌贴扎使疼痛减轻了94%，但VMO/VL比值没有改变。
结果表明，无论是旨在选择性激活VMO活动的练习，还是髌贴扎，与类似练习相比都不能提高VMO/VL比值。
