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IRCT20230612058457N11 IRCT 2026-09-30 University of Guilan Comparison of the acute effects of three types of dynamic warm-up on the neuromuscular performance of male soccer players Acute Effects of Myofascial Chain-Based Dynamic, Conventional Dynamic, and Ballistic Warm-Up Protocols on Neuromuscular Performance in Soccer Players: A Randomized Crossover Trial 2026-10-01 anticipated 70 Complete https://irct.ir/trial/93682 interventional Randomization: Randomized, Blinding: Single blinded, Placebo: Not used, Assignment: Crossover, Purpose: Prevention, Other design features: This study will be conducted as a randomized crossover trial with repeated measures, in which each participant will receive all three warm-up protocols, including myofascial chain-based dynamic warm-up, conventional dynamic warm-up, and ballistic warm-up, in separate sessions and in a randomized order. Each participant will serve as their own control, and a minimum interval of 72 hours will be considered between sessions. To reduce the influence of environmental factors and physical activity before testing, the sessions will be conducted under similar environmental conditions, and participants will be asked to refrain from intense physical activity during the 24 hours before each session. Performance assessment after each protocol will include the measurement of vertical jump height, reactive strength index, 20-meter sprint speed, and change-of-direction ability, Randomization description: The sequence of performing the three warm-up protocols for each participant will be determined by simple randomization at the individual level. Each participant will receive all three protocols, including myofascial chain-based dynamic warm-up, conventional dynamic warm-up, and ballistic warm-up, and the order of performing the protocols will be randomly determined using statistical software; in this study, block or stratified randomization will not be used. A random sequence of the three protocols will be generated for each participant and maintained until the end of the study. To ensure allocation concealment, the random sequences will be placed in opaque, non-transparent, sealed envelopes before the start of the study, and after each participant's entry and eligibility verification, the relevant envelope will be opened by an individual independent of the outcome assessment to determine the order of intervention implementation. The outcome assessor will not be aware of the allocation order and the protocol performed in each session. This method is consistent with the crossover design of the study and the randomization of the order of interventions, Blinding description: Participants and the administrator/interventionist will not be blinded to the type of intervention due to the nature and observable differences of the warm-up protocols. Also, the principal investigator and the person responsible for performing the warm-up protocols will be aware of the type of intervention performed. In contrast, the outcome assessor and the person responsible for collecting performance data will not be aware of the allocation order and the type of warm-up protocol performed in each session, and will carry out the outcome assessment without knowledge of the intervention. N/A Neuromuscular performance; sports warm-up; athletic performance; soccer players.. Intervention 1: Myofascial chain-based dynamic stretching: The protocol consists of four movement stations based on myofascial chains, designed to engage the superficial back line, spiral line, and other movement patterns defined in the protocol. The protocol is performed dynamically and within a functional range of motion, with a total execution time of 10 minutes, including transitions between stations. Intervention 2: Conventional dynamic stretching: The protocol includes four lower limb muscle groups, including the quadriceps, gluteal muscles, hamstrings, and triceps surae (gastrocnemius-soleus). Each movement is performed in two 30-second sets with 45 seconds of rest between movements. The movements are performed in a swinging and controlled manner through the full joint range of motion, with execution speed gradually increasing. The total duration of the protocol, including transitions between stations, is 10 minutes. Intervention 3: Ballistic stretching: The protocol includes the same four muscle groups, the quadriceps, gluteal muscles, hamstrings, and triceps surae, and is performed in two 30-second sets with 45 seconds of rest between movements. In each set, the participant first holds the stretched position at maximum range for 5 seconds, then performs 5 seconds of bouncing movements with increasing range; this pattern is repeated until the 30 seconds are completed. The total duration of the protocol is 10 minutes. Intervention 4: There is no independent control intervention; the study is conducted as a crossover trial, and each participant serves as their own control. Yes - There is a plan to make this available What will be shared: All data will be shareable after anonymization of participants. When: All data will be shared after anonymization, and access will be available immediately upon publication of the results. To whom: The data will be accessible to researchers, organizations, and relevant football authorities for journal publication purposes. Conditions: This is aimed at contributing to scientific research and advancing practical objectives, with a focus on reducing musculoskeletal injuries and improving the performance of football players. Where to obtain: Mohammad Alimoradi/malimoradisport@gmail.com How to obtain: Requests for data access will be responded to within one week. سایر توضیحات فا خالی Comments:
public Mohammad Alimoradi
Yekta residential complex, Fathalishahi 12 St, Kerman, Iran
Kerman Iran (Islamic Republic of) 7614816961 +98 34 2250 1685 malimoradi@sport.uk.ac.ir Shahid Bahonar University scientific Mohammad Alimoradi
Yekta residential complex, Fathalishahi 12 St, Kerman, Iran
Kerman Iran (Islamic Republic of) 7614816961 +98 34 2250 1685 malimoradi@sport.uk.ac.ir Shahid Bahonar University Iran (Islamic Republic of) Iran (Islamic Republic of) The participants' age should be 18 to 28 years. The participant should be a male player of a competitive soccer team. The participant should have at least 3 years of regular soccer training experience. The participant should have at least 3 soccer training sessions per week. The participant should not have suffered a lower limb injury during the past 6 months. The participant should not have had orthopedic surgery during the past 6 months. The participant should not have any neurological or musculoskeletal disorder affecting the performance of functional tests. The participant should not use any medication or supplement affecting neuromuscular performance during the study period. The participant should provide informed consent to attend all three experimental sessions. 18 years 28 years Male History of orthopedic surgery during the past 6 months. Presence of a neurological disorder affecting the performance of functional tests. Presence of a musculoskeletal disorder affecting the performance of functional tests. Use of medications affecting neuromuscular performance at the time of entry into the study. Use of supplements affecting neuromuscular performance at the time of entry into the study. Prevention Prevention Prevention N/A Myofascial chain-based dynamic stretching: The protocol consists of four movement stations based on myofascial chains, designed to engage the superficial back line, spiral line, and other movement patterns defined in the protocol. The protocol is performed dynamically and within a functional range of motion, with a total execution time of 10 minutes, including transitions between stations. Conventional dynamic stretching: The protocol includes four lower limb muscle groups, including the quadriceps, gluteal muscles, hamstrings, and triceps surae (gastrocnemius-soleus). Each movement is performed in two 30-second sets with 45 seconds of rest between movements. The movements are performed in a swinging and controlled manner through the full joint range of motion, with execution speed gradually increasing. The total duration of the protocol, including transitions between stations, is 10 minutes. Ballistic stretching: The protocol includes the same four muscle groups, the quadriceps, gluteal muscles, hamstrings, and triceps surae, and is performed in two 30-second sets with 45 seconds of rest between movements. In each set, the participant first holds the stretched position at maximum range for 5 seconds, then performs 5 seconds of bouncing movements with increasing range; this pattern is repeated until the 30 seconds are completed. The total duration of the protocol is 10 minutes. There is no independent control intervention; the study is conducted as a crossover trial, and each participant serves as their own control. Vertical jump height. Timepoint: Before to after each warm-up protocol. Method of measurement: My Jump 2 application. Reactive strength index (RSI). Timepoint: Before to after each warm-up protocol. Method of measurement: My Jump 2 application. 20-meter sprint speed. Timepoint: Before to after each warm-up protocol. Method of measurement: Finish Photo application. Change-of-direction ability. Timepoint: Before to after each warm-up protocol. Method of measurement: CODTimer application. University of Guilan Approved 2026-09-23 Research Ethics Committees of University of Guilan 5th Kilometer of Persian Gulf Highway, Rasht, Guilan Province, Iran Rasht Guilan Iran (Islamic Republic of)