SMA fatigue mystery: scientists probe exercise limits in 34 patients
NCT ID NCT05518773
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This completed study looked at why people with spinal muscular atrophy (SMA) often feel very tired and have trouble exercising. Researchers tested 34 ambulatory SMA patients who were already on standard treatments (risdiplam or nusinersen) for at least six months. Participants did an exercise test on a special bike to measure peak oxygen uptake, and also had a simple, non-invasive muscle oxygen measurement. The goal was to understand the role of mitochondria in fatigue and exercise intolerance, which could guide future therapies.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
What this could lead to
If this study finds clear links between SMA, mitochondrial function, and fatigue, it could point toward new ways to manage tiredness and improve exercise ability in SMA patients.
What could go wrong
This is a small, single-visit observational study with only 34 participants. It does not test any new treatment, so any insights are preliminary and need confirmation in larger, longer studies.
Disclaimer
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the original study
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Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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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
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Locations
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Columbia University Irving Medical Center
New York, New York, 10032, United States