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IRCT20240306061185N2 IRCT 2024-03-08 The University of Shahid Beheshti Flexibility of hamstring muscles Comparative effect of six-weeks static stretch, PNF, Graston technique, muscle energy technique and foam roller on the flexibility of hamstring muscle youth football players 2024-03-29 anticipated 90 Complete https://irct.ir/trial/75853 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Supportive, Randomization description: Simple randomization method, Unit: individually, Randomization tool: To determine the group of people by a simple random method, first we list the names of the people in Excel, then we select a random number for each person using the RAND function, and finally we group the people using the MOD ROW function. N/A healthy people. Intervention 1: Intervention group: Static stretch, Eight weeks, three sessions a week, Each of the participants to perform static stretching, first by keeping the spine in a neutral position, we ask the person to bend forward from the hip joint, and each subject is instructed to avoid bending the neck and only from the hip joint. move the hips, as a result of which the spine is kept in a neutral position. Subjects will actively flex the hip joint until the hamstring muscle is stretched with mild and tolerable pain, and will maintain this stretch for 30 seconds and repeat 4 times, resting 20 seconds between each repetition. Intervention 2: Intervention group: PNF stretch, Eight weeks, three sessions a week, PNF Hold-Relax method will be used for PNF stretching. With subjects lying on their back while the opposite lower limb is fixed, the hamstring muscle tester performs passive hip abduction while the knee is fully extended. During the execution, it should be noted that the hip joint does not rotate, the subject's leg is placed on the examiner's shoulder, and the hamstring muscle is stretched until the subject first reports a slight stretching sensation, this position is maintained for 7 seconds, then the subject isometrically stretches the muscle Contracts the hamstrings by pressing the leg down against the tester's resistance for 3 seconds, after which the subject is asked to rest for 5 seconds, then the tester passively stretches the muscle until it feels a slight stretch. . This stretch will be performed for 7 seconds. This protocol will be repeated 4 times with an interval of 20 seconds. Intervention 3: Intervention group: Graston technique, Eight weeks, three sessions a week, Each participant in the GT group bends his knee 30 to 60 degrees with tool #1 after applying massage oil to the desired position, then the examiner will perform the movement from the posterior gluteal line to the popliteal cavity 30 times in 1 minute in 3 sets. Intervention 4: Intervention group: muscle energy technique, Eight weeks, three sessions a week, Participants in the MET group will first lie on their backs and place their ankles on the examiner's shoulder. A MET cycle consists of 3 phases of rest, contraction (including a quadriceps muscle contraction at 15% of its maximal contraction force) and stretching, performed sequentially for 10 seconds each. This protocol is repeated 4 times with a 20 second rest between each repetition. Intervention 5: Intervention group: Foam roller, Eight weeks, three sessions a week, Subjects sit on the floor of the foam roller and place their ischial ridge and leg stretched. Subjects are instructed to support their body weight with their hands placed on the floor. The exercise consisted of 3 repetitions of 1 minute with a 10-second rest between repetitions. The subject placed the legs together while using a foam roller while keeping the back of the thighs in a relaxed position. Intervention 6: Control group: Control group, No intervention, They will do their normal exercises. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is There is no further information
public Hossein Rezaei
No 403., Nawab Safavi Ave., Imam Hossein Square., Sain Qala
Sain Qala Iran (Islamic Republic of) 4574148543 +98 24 3562 3177 hosse.rezaei@mail.sbu.ac.ir The University of Shahid Beheshti scientific Hossein Rezaei
No 403., Nawab Safavi Ave., Imam Hossein Square., Sain Qala
Sain Qala Iran (Islamic Republic of) 4574148543 +98 24 3562 3177 hosse.rezaei@mail.sbu.ac.ir The University of Shahid Beheshti Iran (Islamic Republic of) Age range from 12 to 15 years Have a history of sports activity in the field of football during the last 2 years Having at least 3 training sessions per week Do not have a history of hamstring and knee joint injuries 12 years 15 years Male Older and younger ages Unwillingness to participate in research Having damage to the organs Prevention Prevention Prevention Prevention Prevention Prevention Intervention group: Static stretch, Eight weeks, three sessions a week, Each of the participants to perform static stretching, first by keeping the spine in a neutral position, we ask the person to bend forward from the hip joint, and each subject is instructed to avoid bending the neck and only from the hip joint. move the hips, as a result of which the spine is kept in a neutral position. Subjects will actively flex the hip joint until the hamstring muscle is stretched with mild and tolerable pain, and will maintain this stretch for 30 seconds and repeat 4 times, resting 20 seconds between each repetition. Intervention group: PNF stretch, Eight weeks, three sessions a week, PNF Hold-Relax method will be used for PNF stretching. With subjects lying on their back while the opposite lower limb is fixed, the hamstring muscle tester performs passive hip abduction while the knee is fully extended. During the execution, it should be noted that the hip joint does not rotate, the subject's leg is placed on the examiner's shoulder, and the hamstring muscle is stretched until the subject first reports a slight stretching sensation, this position is maintained for 7 seconds, then the subject isometrically stretches the muscle Contracts the hamstrings by pressing the leg down against the tester's resistance for 3 seconds, after which the subject is asked to rest for 5 seconds, then the tester passively stretches the muscle until it feels a slight stretch. . This stretch will be performed for 7 seconds. This protocol will be repeated 4 times with an interval of 20 seconds Intervention group: Graston technique, Eight weeks, three sessions a week, Each participant in the GT group bends his knee 30 to 60 degrees with tool #1 after applying massage oil to the desired position, then the examiner will perform the movement from the posterior gluteal line to the popliteal cavity 30 times in 1 minute in 3 sets. Intervention group: muscle energy technique, Eight weeks, three sessions a week, Participants in the MET group will first lie on their backs and place their ankles on the examiner's shoulder. A MET cycle consists of 3 phases of rest, contraction (including a quadriceps muscle contraction at 15% of its maximal contraction force) and stretching, performed sequentially for 10 seconds each. This protocol is repeated 4 times with a 20 second rest between each repetition. Intervention group: Foam roller, Eight weeks, three sessions a week, Subjects sit on the floor of the foam roller and place their ischial ridge and leg stretched. Subjects are instructed to support their body weight with their hands placed on the floor. The exercise consisted of 3 repetitions of 1 minute with a 10-second rest between repetitions. The subject placed the legs together while using a foam roller while keeping the back of the thighs in a relaxed position. Control group: Control group, No intervention, They will do their normal exercises Hamstring flexibility. Timepoint: Before the intervention and eight weeks later. Method of measurement: goniometer, Active knee extension test. The University of Shahid Beheshti Approved 2023-09-20 Sport Sciences Research Mir Emad Ave., Tehran Tehran Tehran Iran (Islamic Republic of)