Comparison of Velocity-Based and Traditional Strength Training in Youth Soccer Players (NCT07447258) | Clinical Trial Compass
CompletedNot Applicable
Comparison of Velocity-Based and Traditional Strength Training in Youth Soccer Players
Turkey (Türkiye)24 participantsStarted 2021-03-15
Plain-language summary
This study compared the effects of velocity-based strength training and traditional strength training on physical performance and muscle adaptations in youth soccer players. Twenty-four male youth soccer players were randomly assigned to one of three training groups: velocity-based training with 10% velocity loss, velocity-based training with 20% velocity loss, or traditional resistance training performed to failure. All groups trained twice per week for six weeks using the same relative load.
Before and after the training period, participants completed assessments of sprint performance, jump performance, change of direction speed, muscle strength, and muscle thickness. The purpose of this study was to determine whether velocity-based training could provide similar or superior improvements in performance and muscle development compared with traditional training while using a lower total training volume.
Who can participate
Age range
15 Years – 17 Years
Sex
MALE
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion Criteria
* Male youth soccer players aged 15-17 years
* Competing in an elite youth soccer academy league
* Actively participating in organized soccer training and official competitions
* Minimum of 2 years of structured resistance training experience as part of team training
* Training regularly five days per week with official matches on weekends
* Free from musculoskeletal injury or other health problems at the time of enrollment
* Ability to correctly perform squat, deadlift, and hip thrust exercises
* Written informed consent obtained from parents or legal guardians, and assent obtained from participants
Exclusion Criteria
* History of musculoskeletal injury or surgery within the previous 6 months
* Presence of any neurological, cardiovascular, or orthopedic disorder
* Use of performance-enhancing drugs or supplements affecting neuromuscular performance
* Participation in another structured strength or conditioning research study within the previous 3 months
* Failure to attend more than 10% of the scheduled training sessions
* Inability or unwillingness to comply with the study protocol or testing procedures
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.