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Lifting weights, not rest: new study tests exercise as treatment for lost periods

NCT ID NCT07612735

Symptom relief Sponsor: Catholic University of Murcia 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looks at whether an 8-week supervised weightlifting program can help active women with functional hypothalamic amenorrhea (a condition where periods stop due to stress and low calorie intake) safely regain their menstrual cycles. Researchers will compare 28 women—some with the condition and some with normal cycles—tracking changes in strength, mood, and overall health. The goal is to offer an alternative to the usual advice of complete rest, which can be stressful for active women.

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 28 people

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

Expected to start

May 2026

An estimate. Start dates often move.

Expected to finish

Jul 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 years and older

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: * General Profile: Active women aged 18 to 35 years. * FHA Group: Clinical diagnosis of Functional Hypothalamic Amenorrhea, defined as the absence of menstruation for at least three consecutive months not attributable to other endocrine disorders. * Control Group (EU): Eumenorrheic women with regular ovulatory cycles lasting between 24 and 35 days during the previous six months. * Commitment: Agreement to participate in a supervised 8-week resistance training program and provision of medical documentation confirming menstrual status. Exclusion Criteria: * Hormonal Status: Current use of any hormonal contraceptives. * Medical Conditions: Diagnosed endocrine disorders such as Polycystic Ovary Syndrome (PCOS), hyperandrogenism, or thyroid dysfunction. Pregnancy: Current pregnancy. * Physical Activity History: Engagement in any structured resistance training program during the three months prior to the start of the intervention. * General Health: Any medical condition that could interfere with the study protocol or the ability to perform physical exercise.

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Conditions

The condition(s) this trial relates to.

amenorrhea functional hypothalamic amenorrhea Relative Energy Deficiency in Sport

As listed by the trial registrant

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

Amenorrhea Functional hypothalamic amenorrhea (FHA) Low energy availability Relative energy deficiency in sport

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

    The full official record for this study. This one lists no contact details, but it is the first place any would appear.

    Open the record ↗

  3. A doctor treating you

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Contacts and locations

Locations

  • Universidad Católica de Murcia

    Murcia, Murcia, 30107, Spain

More trials for these conditions

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