دورية أكاديمية
Changes in Muscle Strategies During Landing Task in Subjects With and Without Knee Genu Varum
| العنوان: | Changes in Muscle Strategies During Landing Task in Subjects With and Without Knee Genu Varum |
|---|---|
| المؤلفون: | Mahboobeh Azizi, Khosrow Khademi, Mehri Ghasemi, Alireza Akbarzadegan |
| المصدر: | Journal of Modern Rehabilitation, Vol 14, Iss 2 (2020) |
| بيانات النشر: | Tehran University of Medical Sciences, 2020. |
| سنة النشر: | 2020 |
| المجموعة: | LCC:Medicine |
| مصطلحات موضوعية: | Surface electromyography, Genu varum, Leg drop landing, Motor control, Medicine |
| الوصف: | Introduction: Onset and offset activation of lower limb and trunk muscles may change the knee with genu varum during landing. These motor control strategies can be different from those in healthy subjects and contribute to more injuries in lower extremities. This study aimed to compare the delay time of the onset activity of the abdominal and lower limb muscles in the specific landing task. Materials and Methods: Ten females with genu varum deformity and ten females with normal knee participated in this case-control study. Genu varum deformity was measured by a camera capturing goniometer. The subjects were informed to land by preferred lower limb from a table (30 cm high) on a force plate. Vertical Ground Reaction Force (VGRF) was measured to clarify the onset of the landing task. Surface Electromyography (sEMG) of transverse abdominal/int. oblique (TA/IO), Vastus Medialis (VM), Vastus Lateralis (VL), Lateral Gastrocnemius (LG), and medial gastrocnemius (MG) muscles were recorded during landing. The difference between the onset activity of the above muscles and onset of VGRF was calculated as delay times and compared between muscles and between two groups. Also, the offset of activities and the intensity of muscle activation (normalized RMS) were compared between the two groups. Results: Lower limb and trunk muscles showed significantly different onset of activities in the genu varum group (P |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2538-385X 2538-3868 |
| العلاقة: | https://jmr.tums.ac.ir/index.php/jmr/article/view/298Test; https://doaj.org/toc/2538-385XTest; https://doaj.org/toc/2538-3868Test |
| الوصول الحر: | https://doaj.org/article/3a9bf03ca7374788b51c16e11455e6b7Test |
| رقم الانضمام: | edsdoj.3a9bf03ca7374788b51c16e11455e6b7 |
| قاعدة البيانات: | Directory of Open Access Journals |
| تدمد: | 2538385X 25383868 |
|---|