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Can elastic bands help volleyball players jump higher?

NCT ID NCT07799701

Symptom relief Sponsor: Gdansk University of Physical Education and Sport Source: ClinicalTrials.gov ↗

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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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Sep 02, 2026 · Last updated Sep 03, 2026 · Updated 1 time

Summary

This trial tests whether adding elastic-band assistance to contrast training improves jumping ability in male volleyball players aged 17 to 22. Forty-two athletes follow one of three 10-week programs: contrast training with elastic bands, traditional contrast training, or complex training. Researchers measure jump height, power, and reactive strength before and after the program using a force platform. The goal is to see which training approach best boosts explosive performance.

What this could mean

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

Active substance
Elastic-band-assisted contrast training, a 10-week exercise program pairing heavy resistance with explosive jumps
What this could lead to
If it works, this training method could give volleyball players a practical way to jump higher and react faster on the court.
What could go wrong
The trial is small and early, and results in trained athletes may not apply to everyone. Gains in jump tests may not translate directly to game performance.

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

42 people

The number who actually took part.

Started

Apr 2023

Finished

Jun 2023

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

17 to 22 years

Sex

Male participants only

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: * Male volleyball players. * Age between 17 and 22 years. * At least 12 months of regular high-intensity resistance training experience. * At least 12 months of technical volleyball training experience. Exclusion Criteria: * Injury sustained within the 3 months preceding enrollment that could affect participation in training or testing. * Training absence exceeding 4 consecutive weeks during the previous 12 months.

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As listed by the trial registrant

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

Physical performance

Contacts and locations

Locations

  • Gdansk University of Physical Education and Sport

    Gdansk, 80-336, Poland

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