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Can a quick stretch after warming up make basketball players jump higher?

NCT ID NCT07722143

Knowledge-focused Sponsor: Istanbul Medipol University Hospital 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 This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jul 23, 2026 · Last updated Jul 24, 2026 · Updated 1 time

Summary

This trial tests three warm-up routines in male amateur basketball players aged 15–25: a standard dynamic warm-up alone, or the same warm-up followed by either classical or short-duration PNF stretching. Researchers measure jump height, sprint time, agility, flexibility, and balance right after the warm-up and again 15 minutes later. The goal is to see whether a brief self-administered stretch can improve flexibility without hurting 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
warm-up protocols: standard dynamic warm-up, dynamic warm-up plus classical PNF stretching, or dynamic warm-up plus short-duration self-administered PNF stretching
What this could lead to
If one warm-up method proves superior, it could help coaches and athletes choose a routine that boosts performance without sacrificing flexibility.
What could go wrong
This is a small, single-session study in male amateur players only, so results may not apply to other athletes or real-game conditions.

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

About 45 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Aug 2026

An estimate. Start dates often move.

Expected to finish

Sep 2026

An estimate. End dates often move.

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

15 to 25 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 * Aged 15-25 years * Licensed amateur basketball player * Minimum 2 years of basketball experience * Basketball training at least 3 days per week * No serious lower-extremity injury within the past 6 months * No lower-extremity surgery within the past 6 months * No acute pain or movement limitation * No neurological, vestibular, cardiovascular, or respiratory disorder preventing exercise * No strenuous exercise or official competition within the past 48 hours No alcohol consumption within the past 24 hours No caffeine, energy drinks, pre-workout products, or ergogenic supplements on the testing day * Written informed consent * Parental consent and participant assent for participants younger than 18 years Exclusion Criteria: * Acute lower-extremity muscle, tendon, ligament, or bone injury * Knee, hip, or ankle surgery within the past 6 months * History of major ligament, meniscal, or Achilles tendon injury * Lumbar disc herniation, sciatica, peripheral nerve injury, or neurological disorder * Vestibular disorder or balance impairment * Hypertension, serious cardiovascular disease, or exercise contraindication * Physiotherapy or lower-extremity rehabilitation within the past 3 months * Regular structured lower-extremity stretching * Acute infection, fever, or poor general health on the testing day * Inability to complete the intervention or performance tests

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As listed by the trial registrant

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

Athletic performance Flexibility Physical fitness

How to take part

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  1. The places running it

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  2. The official record

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Contacts and locations

Locations

  • Istanbul Medipol University, South Campus

    Istanbul, 34000, Turkey (Türkiye)

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