An interventional study of Plyometric Exercise and Football Training in Muscle Architecture, sponsored by Hacettepe University. Completed at 1 site in Turkey (Türkiye). Open to male participants aged 12 Years to 19 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-09-18.
Sponsored by Hacettepe University · Not applicable, Interventional, and Prevention
The aim of this study is to examine the effects of plyometric training on biceps femoris longus (BFl) and vastus lateralis (VL) muscle architecture in healthy football players. Individuals will be randomly placed into training and control groups. Measurements of muscle architecture will be taken bilaterally from BFl and VL muscles by means of an ultrasound device. Functional performance will be evaluated with the single leg jump test. Following the initial evaluations, individuals in the training group will receive plyometric training. Evaluations of muscle architecture and functional performance will be taken again from the individuals in the training and control groups at the end of the 4th and 8th weeks. The received ultrasound images will be calculated through the MicroDicom software. In-group and between-group comparisons will be analyzed using the Statistical Package for the Social Sciences program and appropriate tests.
The aim of this study is to examine the effects of plyometric training on biceps femoris longus (BFl) and vastus lateralis (VL) muscle architecture (fiber length, penation angle and muscle thickness) in healthy football players. Individuals will be randomly placed into two different groups, the training group and the control group. Imagery ability, self-efficacy and motivation will be evaluated with various questionnaires and scales in order to compare the homogeneity of the groups. Measurements of muscle architecture will be taken bilaterally from BFl and VL muscles by means of an ultrasound device. Functional performance will be evaluated with the single leg jump test. Following the initial evaluations, individuals in the training group will receive plyometric training consisting of ten different exercises for 8 weeks, 3 sessions per week. In this training, individuals will not participate in a real plyometric training. Volunteers will watch videos to be prepared (action observation) and imagine them performing those exercises (motor imagery). All trainings will be given on the basis of telerehabilitation via distance education tools. Cognitive fatigue at the beginning and end of the session; at the end of each session, the technical quality and efficiency of the training will be evaluated. Evaluations of muscle architecture and functional performance will be taken again from the individuals in the control and training groups at the end of the 4th and 8th weeks. The received ultrasound images will be calculated through the MicroDicom software. In-group and between-group comparisons will be analyzed using the Statistical Package for the Social Sciences program and appropriate tests.
Hacettepe University is the lead sponsor of 983 studies on the registry; 212 are open to participants now.
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Exclusion Criteria:
Individuals in the plyometric training group will receive plyometric training. In this training, individuals will not participate in a real plyometric training. Volunteers will watch videos to be prepared (action observation) and imagine them performing those exercises (motor imagery). All trainings will be given on the basis of telerehabilitation via distance education tools.
Other: Plyometric Exercise
Athletes in this group will continue their routine training programs like the athletes in the plyometric training group.
Other: Football Training
Plyometric training consisting of ten different exercises \[vertical unilateral and bilateral counter movement jump, horizontal unilateral and bilateral counter movement jump, drop jump (30 cm), squat jump, step-hop (20 cm), 180 degree rotation in transverse plane, frontal plane hurdle jump (20 cm) and sagittal plane hurdle jump (20 cm)\] for 8 weeks, 3 sessions per week. Individuals will not participate in a real plyometric training. Volunteers will watch videos to be prepared (action observation) and imagine them performing those exercises (motor imagery)
Routine football trainings
Muscle Architecture Change-1
Fiber length of the vastus lateralis and biceps femoris longus muscles
Time frame: Before, at the end of the fourth week and the eighth week
Muscle Architecture Change-2
Pennation angle of the vastus lateralis and biceps femoris longus muscles
Time frame: Before, at the end of the fourth week and the eighth week
Muscle Architecture Change-3
Muscle thickness of the vastus lateralis and biceps femoris longus muscles
Time frame: Before, at the end of the fourth week and the eighth week
Functional Performance Change-1
Single leg jump distance
Time frame: Before, at the end of the fourth week and the eighth week
Plan to share: Undecided
No publications or documents are linked to this record.
This study is completed, as verified in Nov 2022. You cannot join it, but the record below documents what was studied.
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Hacettepe University