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IRCT20191214045729N2 IRCT 2025-06-24 The University of Tehran Comparing the effects of local, functional, and mental fatigue protocols on muscle strength, balance and performance in healthy athletes and with anterior cruciate ligament reconstruction. Comparing the effects of local, functional, and mental fatigue protocols on isokinetic strength, balance, and performance in healthy athletes and with anterior cruciate ligament reconstruction 2025-08-06 anticipated 24 Complete https://irct.ir/trial/83471 interventional Randomization: N/A, Blinding: Not blinded, Placebo: Not used, Assignment: Other, Purpose: Prevention. N/A Anterior Cruciate Ligament Reconstruction. Intervention 1: Intervention group one: Local fatigue: To induce localized fatigue, the Biodex isokinetic dynamometer (System 4 Pro™ model) will be used. In this experiment, each participant will undergo six test stages. The first three stages involve determining the maximum torque at three angular velocities: 60, 180, and 300 degrees per second. The criterion for achieving fatigue at each speed is a reduction in torque to below 50% of the individual's maximal voluntary torque at that specific speed. Intervention 2: Intervention group two: Functional fatigue : To induce functional fatigue, a functional agility short-term fatigue protocol will be used. This protocol consists of the following four components: Step-up L-drill Countermovement jump Agility ladder drill. Based on previous studies, participants are required to complete all four sets of the protocol consecutively in order to induce a state of fatigue. The entire sequence is estimated to last approximately six minutes. Intervention 3: Intervention group three: Mental fatigue: The mental fatigue protocol will be conducted using the Stroop test.To induce mental fatigue, a 30-minute Stroop task will be employed. The Stroop mental fatigue task is essentially a color-word interference test administered during the mental fatigue session. In this task, color words ("red," "blue," "green," and "yellow") are presented on a screen in either congruent or incongruent formats.Participants are encouraged to exert maximal effort to complete as many items as possible within the 30-minute period.The Stroop task will be administered using the DMDX software on the same display and at the same distance. Yes - There is a plan to make this available What will be shared: All data can be shared after de-identifying individuals. When: The access period begins 8 months after the results are published. To whom: The data is accessible to all scientific and industrial people. Conditions: The data is accessible to all scientific and industrial people. Where to obtain: To receive the data, they can apply to the following email address: m.hamzeh13755@ut.ac.ir Also, they can contact Mohammad Hamzeh at the following number: 00989138790757 How to obtain: After sending the applicant's email and code assigned to the subject at the time of testing, his data will be sent. Comments:
public Mohammad Hamzeh Shalamzari
Faculty of Physical Education and Sport Sciences, between 15th and 16th St., North Kargar st., Tehran, Islamic Republic
Tehran Iran (Islamic Republic of) 1439955975 +98 21 6111 8928 m.hamzeh13755@ut.ac.ir The University of Tehran scientific Hooman Minoonejad
Faculty of Physical Education and Sport Sciences, between 15th and 16th St., North Kargar st., Tehran, Islamic Republic
Tehran Iran (Islamic Republic of) 1439955975 +98 21 6111 8928 h.minoonejad@ut.ac.ir The University of Tehran Iran (Islamic Republic of) The samples were from athletes in sports with shearing, jumping, and landing movement patterns who had regular sports activity and at least 3 years of experience. The mechanism of ACL injury is non-contact and occurs in jumping and landing movement patterns or shearing movements. The surgical procedure is anterior cruciate ligament reconstruction with hamstring autograft. Have completed various levels of rehabilitation and rehabilitation courses. The physical activity level of individuals after the rehabilitation process and return to sports should be a score of 6 or higher based on the Tigner questionnaire. Full range of motion in knee flexion and extension movements Body mass index between 18 - 25 18 years 30 years Male Any neurological, cardiovascular, metabolic, rheumatic or vestibular disease. Frequent use of painkillers and drugs that affect the person's balance Consumption of any caffeine, energy drinks, or alcohol 24 hours before performing the fatigue protocol Performing intense physical activity 24 hours before the implementation of the fatigue protocol Having any history of injury or surgery to the hip, ankle, foot, or opposite knee injury Having any mental health problems, such as depression or anxiety Other Other Other Intervention group one: Local fatigue: To induce localized fatigue, the Biodex isokinetic dynamometer (System 4 Pro™ model) will be used. In this experiment, each participant will undergo six test stages. The first three stages involve determining the maximum torque at three angular velocities: 60, 180, and 300 degrees per second. The criterion for achieving fatigue at each speed is a reduction in torque to below 50% of the individual's maximal voluntary torque at that specific speed. Intervention group two: Functional fatigue : To induce functional fatigue, a functional agility short-term fatigue protocol will be used. This protocol consists of the following four components: Step-up L-drill Countermovement jump Agility ladder drill. Based on previous studies, participants are required to complete all four sets of the protocol consecutively in order to induce a state of fatigue. The entire sequence is estimated to last approximately six minutes. Intervention group three: Mental fatigue: The mental fatigue protocol will be conducted using the Stroop test.To induce mental fatigue, a 30-minute Stroop task will be employed. The Stroop mental fatigue task is essentially a color-word interference test administered during the mental fatigue session. In this task, color words ("red," "blue," "green," and "yellow") are presented on a screen in either congruent or incongruent formats.Participants are encouraged to exert maximal effort to complete as many items as possible within the 30-minute period.The Stroop task will be administered using the DMDX software on the same display and at the same distance. Quadriceps to hamstring strength ratio. Timepoint: At the beginning of the study (before the start of the intervention) and 7, 14 and 21 days after the start of the study (after each fatigue protocol applied at 7-day intervals). Method of measurement: Isokinetic. Knee Flexion and Extensor Peak Torque. Timepoint: At the beginning of the study (before the start of the intervention) and 7, 14 and 21 days after the start of the study (after each fatigue protocol applied at 7-day intervals). Method of measurement: Isokinetic. Landing performance. Timepoint: At the beginning of the study (before the start of the intervention) and 7, 14 and 21 days after the start of the study (after each fatigue protocol applied at 7-day intervals). Method of measurement: Landing Error Scoring System. Joint Position Sense. Timepoint: At the beginning of the study (before the start of the intervention) and 7, 14 and 21 days after the start of the study (after each fatigue protocol applied at 7-day intervals). Method of measurement: Isokinetic. Postural Stability. Timepoint: At the beginning of the study (before the start of the intervention) and 7, 14 and 21 days after the start of the study (after each fatigue protocol applied at 7-day intervals). Method of measurement: Biodex Balance System. The University of Tehran Approved 2025-05-11 Research Ethics Committees of Tehran University - Faculty of Sport Sciences and Health Faculty of Physical Education and Sport Sciences, between 15th and 16th St., North Kargar st., Tehran, Islamic Republic Tehran Tehran Iran (Islamic Republic of)