Why do Post-COVID patients feel so tired? new study investigates exercise responses
NCT ID NCT05445830
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.
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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
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Karolinska University Hospital Huddinge
Stockholm, Huddinge, 141 57, Sweden
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