Den här översättningen är inte klar ännu. Den här sidan är just nu på engelska.

Gå till den engelska sidan

Cure My Disease

Don't miss your cure!

 Log in / Sign up

Why do Post-COVID patients feel so tired? new study investigates exercise responses

NCT ID NCT05445830

Knowledge-focused Sponsor: Karolinska Institutet Source: ClinicalTrials.gov ↗

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 26, 2026 · Last updated Aug 07, 2026 · Updated 2 times

Summary

This study looks at why people with post-COVID syndrome have trouble exercising and feel very tired. Researchers will compare 62 post-COVID patients with healthy volunteers, monitoring their responses to different types of exercise like high-intensity intervals, moderate walking, and strength training. The goal is to find out what causes these symptoms and how to improve care and rehabilitation.

What this could mean

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

Active substance
High-Intensity-Interval-Exercise (HIIE), moderate intensity continuous exercise, and strength training
What this could lead to
If successful, this study could help doctors understand the causes of fatigue and exercise problems in post-COVID patients, leading to better rehabilitation programs.
What could go wrong
This is an observational study with only 62 participants, so results may not apply to everyone. It aims to understand symptoms, not test a treatment, so no direct benefit is guaranteed.

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

62 people

The number who actually took part.

Started

Sep 2022

Finished

Dec 2025

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 64 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: * Verified test of covid-19 infection (PCR, or antigen or antibody before vaccination) (mandatory only for post-COVID group) * Symptoms persisting for at least 3 months (validaded with DSQ-PEM questionnarie) (only for post-COVID group) Exclusion Criteria: * Subject's complaints may have been present before March 2020 * Previous history cardiovascular, respiratory disease or other autoimmune disease * History of general anxiety syndrome or somatic symptom disorder

Get updates

Get notified about this study

Sign up to get updates when this study changes or when new studies for Post COVID syndrome are added.

Vår säkerhetsrekommendation!

Genom att skicka in godkänner du våra Användarvillkor

Conditions

The condition(s) this trial relates to.

long COVID-19 post-COVID-19 disorder

As listed by the trial registrant

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

Post COVID syndrome

Contacts and locations

Locations

  • Karolinska University Hospital Huddinge

    Stockholm, Huddinge, 141 57, Sweden

More trials for these conditions

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