Federal University of Uberlândia-Minas Gerais, Brazil.
Federal University of Uberlândia-Minas Gerais, Brazil.
J Electromyogr Kinesiol. 2019 Oct;48:17-23. doi: 10.1016/j.jelekin.2019.05.017. Epub 2019 Jun 3.
Patellofemoral pain syndrome (PPS) is characterized by anterior knee pain and affects young female adults. Physiotherapy is the most indicated treatment. The objective of the study was to analyze electromyographic activity of the quadriceps and gluteus medius muscles during different open and closed kinetic chain exercises in women with PPS. Twenty-two clinically healthy women and 24 women with symptomatic PPS were assessed through surface electromyography of the quadriceps and gluteus medius during the following exercises: straight leg raise with and without lateral hip rotation; squats; squats with adduction and hip abduction; and squats combined with lateral hip rotation. When comparing the groups, only the quadriceps muscle showed higher activity in the PPS group. In the comparisons between the exercises, in relation to gluteus medius and quadriceps muscle activity, the straight leg raise and straight leg raise with lateral hip rotation exercises showed more activity than squats in both groups. Among the squats, squats with adduction generated more gluteus medius activity in both groups, and no difference was noted among the squats for the quadriceps muscle. Therefore, rehabilitation programs that include exercises such as straight leg raises, straight leg raises with lateral hip rotation, and squats with adduction may be used for PPS patients.
髌股疼痛综合征（PPS）的特征为膝关节前侧疼痛，影响年轻成年女性。物理疗法是最主要的治疗方法。本研究旨在分析 PPS 女性在不同开链和闭链运动下股四头肌和臀中肌的肌电图活动。通过对 22 名临床健康女性和 24 名有症状的 PPS 女性进行股四头肌和臀中肌的表面肌电图评估，进行以下练习：直腿抬高加或不加髋关节外旋；深蹲；内收和外展髋关节的深蹲；以及髋关节外旋的深蹲。在对两组进行比较时，只有 PPS 组的股四头肌表现出更高的活动度。在对练习进行比较时，与臀中肌和股四头肌活动相关，直腿抬高和直腿抬高加髋关节外旋练习在两组中的活动度均高于深蹲。在深蹲中，内收的深蹲在两组中都产生了更多的臀中肌活动，而对于股四头肌，深蹲之间没有差异。因此，包括直腿抬高、直腿抬高加髋关节外旋和内收的深蹲等练习的康复方案可用于 PPS 患者。
