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Vitamin d deficiency linked to balance problems, new study shows

NCT ID NCT07435935

Knowledge-focused Sponsor: Istanbul Physical Medicine Rehabilitation Training and Research Hospital Source: ClinicalTrials.gov ↗

What the study statuses mean

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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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 looks at how low vitamin D levels affect balance and the way muscles respond to movement. Researchers will compare adults with vitamin D deficiency to healthy adults using simple standing tests and muscle sensors. No treatments or blood draws are involved—just one session of non-invasive measurements. The goal is to better understand these effects and help design future therapies.

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.

Participants

About 24 people

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

Started

Mar 2026

Expected to finish

Jul 2026

An estimate. End dates often move.

Lead sponsor

A government agency

The lead sponsor is a government body.

Who can take part

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

Who is studied

Adults aged 20 to 40 years recruited from the outpatient clinics of Istanbul Physical Medicine and Rehabilitation Training and Research Hospital. Participants will include individuals with laboratory-confirmed vitamin D deficiency and healthy volunteers with normal vitamin D status.

Ages

20 to 40 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 20 to 40 years. * Ability to provide written informed consent. * Vitamin D deficiency group: serum 25-hydroxyvitamin D level \<10 ng/mL measured within the last 3 months (routine clinical testing). * Healthy control group: normal vitamin D status based on routine clinical testing within the last 3 months. * No use of vitamin D or calcium supplementation within the last 3 months. Exclusion Criteria: * Known metabolic bone disease other than vitamin D deficiency. * Neurological disorder (central or peripheral) or neuromuscular disease. * History of lower-limb surgery, fracture, or prosthesis affecting standing balance. * Vestibular disorder. * BMI \>30 kg/m2. * Active malignancy. * Severe psychiatric disorder. * Skin condition preventing placement of surface EMG electrodes.

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Conditions

The condition(s) this trial relates to.

vitamin D deficiency

As listed by the trial registrant

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

Vitamin D deficiency

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

  • Istanbul Physical Medicine and Rehabilitation Training and Research Hospital

    RECRUITING

    Istanbul, 34186, Turkey (Türkiye)

More trials for these conditions

Other studies related to the condition(s) this trial covers.