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Morning lifts, afternoon wins? the science of priming judo performance

NCT ID NCT07754669

Knowledge-focused Sponsor: The Jerzy Kukuczka Academy of Physical Education in Katowice Source: ClinicalTrials.gov ↗

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Aug 10, 2026 · Last updated Aug 11, 2026 · Updated 1 time

Summary

This study explores whether a morning session of contrast training—combining heavy lifts with explosive jumps and throws—can enhance judo-specific performance later that afternoon. Competitive judokas aged 18 to 22 will complete the morning workout and then be tested on a judo-specific fitness test to see if their performance improves. The goal is to understand if this 'delayed potentiation' effect exists and whether it differs between male and female athletes.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
Morning complex-contrast training (a workout combining heavy lifts with explosive jumps and throws)
What this could lead to
If effective, this could help athletes schedule training to maximize performance in competitions held later in the day.
What could go wrong
This is a small study (16 participants) and results may not apply to all athletes or sports. The effect may also be negligible or vary by sex.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

16 people

The number who actually took part.

Started

Mar 2026

Finished

Apr 2026

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 to 22 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

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

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Athletic performance

Contacts and locations

Locations

  • Academy of Physical Education in Katowice

    Katowice, Silesian Voivodeship, 40-065, Poland

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