Could your phone replace a $1,000 Back-Flexibility device?

NCT ID NCT07680231

What the study statuses mean

This study's is highlighted.

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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

Summary

This study compares a smartphone app (iPhone Level) to a specialized device (BROM) for measuring how much the lower back can bend forward, backward, and sideways. Researchers will enroll 120 healthy male university students aged 18–25 with normal body weight. If the app works well, it might become a simple, inexpensive way to assess back motion.

What this could mean

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

Active substance
iPhone Level application
What this could lead to
If the app proves accurate, it could offer a low-cost, accessible way to measure back motion in clinics or at home.
What could go wrong
This is a small, early-stage study in healthy young men only, so results may not apply to people with back pain or other ages. The app may not match the precision of the dedicated device.

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

120 people

The number who actually took part.

Started

Dec 2025

Finished

May 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.

Who is studied

Healthy University Students with normal BMI Healthy Male university students

Ages

18 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: 1. Age 18-25 years old 2. Healthy Male university students 3. All participants have normal BMI Exclusion Criteria: 1. Recent back, pelvic, or abdominal surgeries, traumatic injury to the back . 2. Lower limb deformities, e.g., leg length discrepancy. 3. Adolescent idiopathic scoliosis 4. Any overweight or obese participants

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

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

Contacts and locations

Locations

  • Cairo University

    Giza, 12613, Egypt

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