The effect of lumbopelvic manipulation on Electromyography parameters of gluteus medius and vastus medialis in patients with patellofemoral pain syndrome

The effect of lumbopelvic manipulation on electromyography parameters of gluteus medius and vastus medialis in patients with patellofemoral pain syndrome

A concealed, randomized, double blinded, controlled Clinical trial design of 26 patients. permuted block method was used for randomization

This study is performed in the biomechanics laboratory of Babol University of Medical Sciences.After the patient's presence in laboratory, the examining physiotherapist performs an evaluation and electromyography(EMG). the lumboplevic manipulation is performed by a physiotherapist who specializes in this area.The specialist physiotherapist performs lumboplevic or sham-manipulation for the patient according to the randomization table. After the intervention and after resting the patient for 10 minutes, the examining physiotherapist enters the laboratory again, and while he is not aware of the type of intervention performed by the treating physiotherapist, the initial evaluation, tests and EMG are performed in the same way. Also, after one week, the examiner will follow up on the patients' condition by phone.

inclusion criteria: Patients under 40 years of age with anterior knee pain with no history of trauma and with patellofemoral pain syndrome diagnostic criteria exclusion criteria: History of any pathological injury in the knee, lumbopelvic manipulation Contraindications, Taking painkillers or physiotherapy in the last 72 hours

The subjects are divided into two groups and An intervention session is performed for them .for the first group The lumboplevic manipulation is performed. And for the second group, the sham manipulation is performed.

Electromyography parameters of gluteus medius and vastus medialis muscles

In this study, participants are randomly divided into two groups by block randomization method with a fixed size of each block of 4.In this way, the list of random shifts of 4 letters A and B, which represent groups one and two, is generated with Random Allocation software and is the criterion for assigning individuals in groups. For example, if ABBA permutation is generated in the first block, it indicates that the first person is in group A, the second and third person in group B, and the fourth person in group A.

This study is a double-blind study, In the way that evaluation and treatment are done by two different people And the evaluator is not aware of the type of grouping. Statistical analysis is also performed by a third person who do not know the grouping and treatment process. Patient blindness: Patients are told that manual therapy is to be performed on the lumbar, pelvic, and lower extremities, But they do not know the exact location and how. Patients are also not informed in which group they are. In the placebo(control) group, the patient is placed on a supine position and the therapist stands on the opposite side of the involved knee, The patient then locks the fingers behind her/his head and then passively moved to the side bend position by the therapist and rotated to the healthy position , and is in this position for five seconds. In the treatment group, the same steps are followed, with the difference that in the last stage, the thrust (High-speed movement of the therapist hand on the patient's ASIS) is applied. Patients are given time to participate in the project in such a way that they will not have any contact to share experiences.