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Ankle crack could boost your vertical leap, study says

NCT ID NCT07641621

Knowledge-focused Sponsor: Northeast College of Health Sciences Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tests whether a chiropractic ankle adjustment can improve how high recreational athletes can jump. Sixty college-aged athletes who exercise regularly will either receive the ankle manipulation or rest quietly. Researchers will measure jump height and ankle flexibility before and after to see if the adjustment makes a difference.

What this could mean

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

Active substance
Chiropractic ankle manipulation (a quick, controlled thrust to the ankle joint)
What this could lead to
If it works, this could point toward a simple, drug-free way to boost athletic performance like jumping.
What could go wrong
This is a small, early-stage trial with only 60 people. The effect may be small or not apply to serious athletes. There is a small risk of minor soreness from the manipulation.

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 60 people

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

Expected to start

Jun 2026

An estimate. Start dates often move.

Expected to finish

May 2027

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

18 to 35 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 range from 18 to 35 years old; and * participating in recreational exercise, three times a week for at least 30 minutes. Recreational exercise includes ball sports (e.g. soccer, basketball, volleyball, etc.), racket sports (e.g. tennis, pickle ball, racket ball, etc.), strength/combat sports (e.g. weight lifting, boxing, martial arts, kickboxing, etc.), endurance sports (running, cycling, rock climbing, etc.), snow/ice sports (downhill or cross-county skiing, snow shoeing, hockey, etc.), interval training (e.g., high-intensity interval training), sprint interval training, repeated sprint training etc.) or moderate-intensity aerobic activities (step classes, dance classes, hiking, etc.) Exclusion Criteria * professional or amateur ranked athlete; * participation in water sports (swimming, water aerobics, kayaking, water skiing, etc.) to meet the recreational exercise inclusion criteria * acute or chronic musculoskeletal injury / condition of the feet, ankles, knees, and/or hips; * acute or chronic musculoskeletal injury / condition of the spine; * pregnancy or there is a possibility of pregnancy. * any diagnosed medical condition; and * any prescribed medications with the exceptions of birth control, anxiety, or attention-deficit/hyperactivity disorder (ADHD) medications.

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As listed by the trial registrant

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

Athletic performance Chiropractic manipulation Lower limb Neuromuscular adaptations

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Biomechanics Laboratory at Northeast College of Health Sciences

    RECRUITING

    Seneca Falls, New York, 13148, United States

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