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IRCT20220812055662N1 IRCT 2022-09-29 The University of Kharazmi The effect of eccentric exercises with gait retraining on reducing patellofemoral pain The effect of adding eccentric exercises to gait retraining exercises on pain, kinetics and kinematics of runners with patellofemoral pain syndrome 2022-10-08 anticipated 30 Complete https://irct.ir/trial/65229 interventional Randomization: Randomized, Blinding: Single blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Randomization description: After initial review, using the http://randomizer.org/ website, patients who have criteria for entering the study randomly participate in retraining، eccentric exercises and control groups. randomization will be simple type. hiding the random allocation using computer-generated randomized block table ( number 1 for retraining group, number 2 for eccentric exercises group and number 3 for control group ). The random numerical sequence is placed in non-transparent and sealed envelopes and will be opened by a third party and the treatment process will continue in accordance with the group's assignment. the evaluator will evaluate the results before the intervention and after 8 weeks of intervention, independent of the hypothesis and methods of the study, Blinding description: Participants read the consent form and present in a 30-minute session of the study groups then participate in this study with satisfaction, without the authority to select their group. the names of the patients are informed by a person unaware of the identity characteristics and Physically, patients randomly divided into three equal groups by / http://randomizer.org and each group is placed separately in sealed envelopes. Each person receive own training and exercises according to their assigned group. the analyzer also examines and compares changes made before and after 8 weeks without knowing the hypotheses, study methods, and patient specifications. N/A patellofemoral pain syndrome. Intervention 1: Intervention group: This group performs gait retraining with verbal feedback. gait retraining done on a treadmill. People run on a treadmill at all times at a convenient speed. Verbal feedback in the form of a recipe such as "Knee retention in the direction of the toes, reduced pelvic sagging and maintaining pelvic symmetry، Decreasing vertical acceleration ( is provided by the tester: a quiet and calm walking style).In general, the practice time starts in 15 minutes for the first session and 3 to 9 minutes per week is added to the time. While the time of gait retaining is reduced from 100% in the first 4 weeks to 25% in the last weeks and then removed. Exercises are followed 3 days a week for 8 weeks. Intervention 2: Intervention group: this group, After performing the retraining group's practices, performs the protocol of the eccentric exercises. the participants will do the exercises correctly، The intensity of the exercises will increase progressively each week, and at the beginning of each stage, the exercises will be performed in a simpler and smaller volume، Step by step, more difficult exercises and less large exercises will be more difficult in the next steps, respectively, with the progress and improvement of the performance of the training athlete. In general, the practice time is 90 minutes, which is done after warm up and gait retraining. exercises are followed 3 days a week for 8 weeks. Intervention 3: Control group: This group continues their special routine exercises. Yes - There is a plan to make this available What will be shared: Only data related to demographic information and consequences are shared. When: After printing the article / articles are arrogant from the study To whom: The data can be displayed and shared at the logical request of the Iranian Clinical Trials Registration Center, journals and academic researchers / researchers who are researching and conducting scientific activities in this field. Conditions: Data analysis and the use of documentation can only be done on the condition that their results be included in the systematic review articles conducted by researchers and academic authors. Terms of registration for sending data and documents including: 1. Send an email ( preferably with valid academic addresses ) to one of the study researchers. 2. Brief and logical explanation of how to use data or documentation. 3. Ensure the registration of a systematic review study protocol that has given access to data or documentation. Where to obtain: By requesting study researchers Elahe Omidvar Elahe.omidvar@khu.ac.ir Malihe Hadadnezhad Malihehadadnezhad@khu.ac.ir Amir Letafatkar Amir.letafatkar@khu.ac.ir How to obtain: The applicant can request details from the researchers within 7 to 10 days using the email sent by email. Comments:
public Amir Letafatkar
Kharazmi university., Hesari Ave., Mirdamad St.
Tehran Iran (Islamic Republic of) 1571914911 +98 21 2222 8001 letafatkaramir@yahoo.com The University of kharazmi scientific Malihe Hadadnezhad
Kharazmi university., Hesari Ave., Mirdamad St.
Tehran Iran (Islamic Republic of) 1571914911 +98 21 2222 8001 malihehadadnezhad@khu.ac.ir The University of kharazmi Iran (Islamic Republic of) Male and female runners with a continuous history of recreational sports in the last 3 years 18 to 40 years age group Standard Body Mass Index between 20 –25 Patellofemoral pain syndrome with a history of 2 months and a intensity of 3 to 7 on a visual analog scale 18 years 40 years Both History of lower and upper body damage in the past year Lower body zone abnormalities Surgery history in the lower limbs, especially the knee, before participating in the study M22.2 Patellofemoral disorders Treatment - Other Treatment - Other N/A Intervention group: This group performs gait retraining with verbal feedback. gait retraining done on a treadmill. People run on a treadmill at all times at a convenient speed. Verbal feedback in the form of a recipe such as "Knee retention in the direction of the toes, reduced pelvic sagging and maintaining pelvic symmetry، Decreasing vertical acceleration ( is provided by the tester: a quiet and calm walking style).In general, the practice time starts in 15 minutes for the first session and 3 to 9 minutes per week is added to the time. While the time of gait retaining is reduced from 100% in the first 4 weeks to 25% in the last weeks and then removed. Exercises are followed 3 days a week for 8 weeks. Intervention group: this group, After performing the retraining group's practices, performs the protocol of the eccentric exercises. the participants will do the exercises correctly، The intensity of the exercises will increase progressively each week, and at the beginning of each stage, the exercises will be performed in a simpler and smaller volume، Step by step, more difficult exercises and less large exercises will be more difficult in the next steps, respectively, with the progress and improvement of the performance of the training athlete. In general, the practice time is 90 minutes, which is done after warm up and gait retraining. exercises are followed 3 days a week for 8 weeks. Control group: This group continues their special routine exercises. Pain. Timepoint: Before the intervention and after 8 weeks of intervention. Method of measurement: Pain questionnaire of Visual Analogue scale (VAS). Kinetic: Ground reaction force. Timepoint: Before the intervention and after 8 weeks of intervention. Method of measurement: Force plate. Kinematic: pelvic drop. Timepoint: Before the intervention and after 8 weeks of intervention. Method of measurement: Three-dimensional (3D) motion analysis system. Kinematic: hip adduction. Timepoint: Before the intervention and after 8 weeks of intervention. Method of measurement: Three-dimensional (3D) motion analysis system. Kinematic: knee flexion. Timepoint: Before the intervention and after 8 weeks of intervention. Method of measurement: Three-dimensional (3D) motion analysis system. Kinematic: knee valgus. Timepoint: Before the intervention and after 8 weeks of intervention. Method of measurement: Three-dimensional (3D) motion analysis system. Kinematic: dorsiflexion. Timepoint: Before the intervention and after 8 weeks of intervention. Method of measurement: Three-dimensional (3D) motion analysis system. The University of Kharazmi Approved 2022-07-05 Ethics committee of sport sciences Research Institute No. 45, Payande 5 Ave., Mosala 18 Blvd.,Rastgar St. Babol Mazandaran Iran (Islamic Republic of)