CompletedNot Applicable

Priming Using Contrast Training Exercise

Poland16 participantsStarted 2026-03-01

Plain-language summary

This study investigated the effects of a morning complex-contrast training session on afternoon sport-specific and physical performance in competitive judokas. The study focused on identifying whether a stimulus targeting both force and velocity components of the force-velocity curve could induce a "delayed potentiation" effect 6 hours later and whether these responses differed by sex.

Who can participate

Age range

18 Years – 22 Years

Sex

ALL

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: * age between 18 and 22 years; * competitive male or female judo athlete; * minimum of 3 years of experience in structured judo training; * previous experience with and technical proficiency in resistance and ballistic training exercises; * ability to correctly perform the back squat, bench press, countermovement jump, and wall ball slam; * technical proficiency in performing the Ippon Seoi-Nage throwing technique; previous experience with the Special Judo Fitness Test; * absence of musculoskeletal injuries or medical conditions that would restrict participation in maximal physical exercise; * ability to complete both experimental conditions and all required performance assessments; * provision of written informed consent before participation. Exclusion Criteria: * less than 3 years of structured judo training experience; * insufficient technical proficiency in the back squat, bench press, countermovement jump, or wall ball slam; * inability to correctly perform the Ippon Seoi-Nage technique; * no previous experience with the Special Judo Fitness Test; * current musculoskeletal pain or injury that could affect resistance exercise, jumping, handgrip assessment, or judo-specific performance; * presence of a medical condition that could restrict maximal physical effort or - make participation in the intervention unsafe; * inability to complete either experimental condition or the required 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.

What they're measuring

Special Judo Fitness Test Index

Timeframe: Approximately 6 hours post-intervention

Trial details

NCT IDNCT07754669

SponsorThe Jerzy Kukuczka Academy of Physical Education in Katowice

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2026-03-20

View on ClinicalTrials.gov More Athletic Performance trials