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Could a few minutes of standing each hour protect women's arteries?

NCT ID NCT07802574

Knowledge-focused Sponsor: King Saud University 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Sep 03, 2026 · Last updated Sep 04, 2026 · Updated 1 time

Summary

This trial tests whether interrupting prolonged sitting with different standing intervals can improve vascular health in healthy women aged 18 to 45. Researchers compare three patterns: standing for 10 minutes every hour, standing for 30 continuous minutes every hour, and standing for three 10-minute bouts each hour. Participants attend three sessions in random order, sitting for 3 hours each time while researchers measure blood pressure, pulse wave velocity, and heart rate. The goal is to see which standing pattern, if any, best supports blood vessel function.

What this could mean

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

Active substance
Standing breaks during prolonged sitting
What this could lead to
If it works, this could point toward simple, practical ways for women to protect their blood vessels during long periods of sitting.
What could go wrong
This is a small, early-stage trial with only 24 participants, so results may not apply to everyone. The effects of standing breaks may be modest or short-lived.

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 24 people

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

Started

Apr 2026

Expected to finish

Oct 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

18 to 45 years

Sex

Female 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: Female participants aged 18-45 years. Healthy individuals with normal blood pressure levels (systolic blood pressure \<130 mmHg and diastolic blood pressure \<80 mmHg). Body mass index (BMI) less than 30 kg/m². Ability to stand without support. No history of cardiovascular disease or chronic diseases that may affect study outcomes. Exclusion Criteria: Pregnancy or breastfeeding. Back injuries preventing prolonged sitting. Use of medications that may affect cardiovascular responses, including antihypertensive, antidiabetic, antidepressant, or hormonal medications. Presence of chronic diseases or cardiovascular conditions affecting vascular health. \-

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Conditions

The condition(s) this trial relates to.

Sedentary Behavior

As listed by the trial registrant

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

Prolonged sitting Sedentary behavior Vascular health

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

  • King Saud University

    RECRUITING

    Riyadh, Saudi Arabia

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