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IRCT20110803007211N6 IRCT 2025-01-15 Research Deputy of Hakim Nizami Higher Education Institute in Quchan The Impact of Neuromuscular Training on Balance and Performance Improvement in Volleyball Players Effect of Six Weeks Reactive Neuromuscular Training on Balance and Performance in Volleyball Players with Anterior Cruciate Ligament Reconstruction 2025-01-04 anticipated 30 Complete https://irct.ir/trial/80946 interventional Randomization: Randomized, Blinding: Single blinded, Placebo: Not used, Assignment: Single, Purpose: Supportive, Randomization description: In this study, the randomization process of participants will be conducted using Random Allocation Software 2.0 through the block randomization method to ensure a balanced distribution across the groups. The unit of randomization will be individual. The random sequence generated by the software will be placed in sealed and numbered envelopes, which will be opened sequentially after the initial assessment of participants and confirmation of the inclusion criteria. This method ensures allocation concealment, reducing bias and improving the accuracy of the study results, Blinding description: Considering the nature of the intervention in this study, which involves neuromuscular reactive exercises, blinding participants is not feasible. The specific exercises performed by the experimental group are easily distinguishable by the participants, making it impractical to achieve participant-level blinding. However, to reduce assessment bias, the outcome evaluations will be conducted by independent assessors blinded to group allocation, and the random allocation of participants to groups will be handled by an independent person who is not involved in data collection or intervention delivery. This ensures that blinding is maintained at the level of outcome assessors and the randomization process, which contributes to reducing bias and improving the validity of the study results. Additionally, this limitation will be clearly stated in the discussion and limitations section of the final manuscript. N/A Anterior Cruciate Ligament (ACL) Tear. Intervention 1: Intervention group: The Reactive Neuromuscular Training (RNMT): protocol aimed to improve movement patterns through self-adjustment and minimal verbal feedback. Conducted over six weeks with 18 sessions (three per week, each 60 minutes), it included a 10-minute warm-up, 40 minutes of balance, agility, and proprioception exercises, and perturbation forces using Thera-bands. Intensity was tailored using the Borg Scale (level ≤6) to prevent fatigue, focusing on correcting knee valgus and ensuring proper movement. Exercises involved static and dynamic tasks for stability, agility drills, and proprioceptive activities. The control group maintained daily routines without training, and the protocol emphasized movement quality over cardiovascular endurance. Intervention 2: Control group: The control group in this study did not receive any intervention and continued with their daily activities. Yes - There is a plan to make this available What will be shared: Data related to the Effect of Six Weeks of Reactive Neuromuscular Training on Balance and Performance in Volleyball Players with Anterior Cruciate Ligament Reconstruction includes body status information (balance and motor performance) and questionnaire data for 30 participants (15 intervention, 15 control) in Excel or SPSS file formats. The data will be available one week after an official request and compliance with ethical considerations. When: After the article's publication, upon request from the corresponding author, the data will be sent within one week. To whom: All researchers working in this field of study. Conditions: The data will be generalizable and usable for conducting similar studies on comparable groups. Where to obtain: An email should be sent to Mr. Mohammad Seyedahmadi, the corresponding author, at Mseyedahmadi@gmail.com. How to obtain: After emailing the corresponding author, the requested data will be sent within one week. Comments:
public Karim Khalaghi
Sento Qochan-Mashhad Road, In Front of Saipa Agency, Qochan, Khorasan Razavi Province, Iran
Quchan Iran (Islamic Republic of) 9471787194 +98 51 4721 1773 karim.khalaghi@yahoo.com Hakim Nizami Higher Education Institute in Quchan scientific karim khalaghi
Sento Qochan-Mashhad Road, In Front of Saipa Agency, Qochan, Khorasan Razavi Province, Iran
Quchan Iran (Islamic Republic of) 9471787194 +98 51 4721 1773 karim.khalaghi@yahoo.com Hakim Nizami Qochan Institute of Higher Education Iran (Islamic Republic of) 1. Age between 18 and 30 years 2. History of anterior cruciate ligament (ACL) reconstruction at least 12 months prior to the start of the study; 3. Return to unrestricted sports participation without reported limitations; 4. Minimum of three years of regular participation in volleyball; 5. An average of three volleyball training sessions per week; 6. No significant lower limb abnormalities (e.g., hip anteversion, genu valgum, genu varum, tibial torsion, or flat feet); 18 years 30 years Male (1) Non-compliance with study procedures (2) Failure to complete the protocol; (3) Occurrence of a sports injury resulting in absence from training; (4) Development of pain during training; (5) Failure to complete the post-test (6) Missing more than two training sessions. M95.8 Other specified acquired deformities of musculoskeletal system Rehabilitation Rehabilitation Intervention group: The Reactive Neuromuscular Training (RNMT): protocol aimed to improve movement patterns through self-adjustment and minimal verbal feedback. Conducted over six weeks with 18 sessions (three per week, each 60 minutes), it included a 10-minute warm-up, 40 minutes of balance, agility, and proprioception exercises, and perturbation forces using Thera-bands. Intensity was tailored using the Borg Scale (level ≤6) to prevent fatigue, focusing on correcting knee valgus and ensuring proper movement. Exercises involved static and dynamic tasks for stability, agility drills, and proprioceptive activities. The control group maintained daily routines without training, and the protocol emphasized movement quality over cardiovascular endurance. Control group: The control group in this study did not receive any intervention and continued with their daily activities. Balance. Timepoint: At the beginning of the study (before the start of the intervention) and at the end of the study (6 weeks after the intervention). Method of measurement: Y-Balance Test: The test measures dynamic balance in three directions (anterior, posteromedial, and posterolateral). The participant pushes a movable platform with their non-dominant foot while standing on the dominant foot. The reach distance, expressed as a percentage of leg length, is averaged over three attempts. The test shows high reliability for both individual directions and total scores. Motor Performance (Vertical Jump, Triple Hop, Single-Leg 6-Meter Hop). Timepoint: At the beginning of the study (before the intervention) and at the end of the study (6 weeks after the intervention). Method of measurement: Vertical Jump Test: This test evaluates the explosive power of the lower limbs in the vertical direction. The participant jumps three times, and the distance between the zero point and the highest jump is measured. The average of the three attempts is recorded as the final score. Triple Hop Test: This test assesses the power, speed, balance, and coordination of the lower limbs. The participant performs three consecutive hops with the dominant foot, and the distance from the starting line to the point where the heel touches the ground during the third hop is measured. Single-Leg 6-Meter Hop Test: This test evaluates power, speed, and balance with an emphasis on time. The participant covers a 6-meter distance with consecutive hops as fast as possible. The time taken from the starting line to crossing the finish line is recorded, and the best time from three attempts is considered the final result. Research Deputy of Hakim Nizami Institute of Higher Education, Approved 2024-07-10 Ethics Committee of Sport Sciences Research Institute No. 3, 5th Alley, Miremad Street, Motahhari Street, Tehran, Iran. Tehran Tehran Iran (Islamic Republic of)