Treadmill vs. road: which running surface is safer for your achilles?
NCT ID NCT06294093
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looked at 48 regular runners to see if running on the road versus a treadmill changes the Achilles tendon structure, muscle strength, balance, and sense of position. Researchers used ultrasound and simple tests to compare the two groups. The goal is to understand if one surface might lead to fewer Achilles injuries.
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 successful, this study could help runners choose safer training surfaces to reduce Achilles tendon injuries.
- What could go wrong
- This is a small observational study with only 48 participants, so results may not apply to all runners. It does not test any treatment.
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Study facts
What this study's own registry entry says, in plain language.
- Participants
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48 people
The number who actually took part.
- Started
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Jun 2024
- Finished
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Aug 2025
- Lead sponsor
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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.
Who is studied
healthy runners who run on a regular basis, without injuries or pain during the last 6 months
- Ages
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18 to 50 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide 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: * run regularly at least twice a week for half an hour, * over 80% of the training on a treadmill or road Exclusion Criteria: * pain or injury to Achilles tendon during the 6 months, preventing running for at least 3 days. * past Achilles tendon surgeries, * sprained ankle in the last six months, * lower limb and back pain while running * participants who report running with minimalist shoes.
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Genom att skicka in godkänner du våra Användarvillkor
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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The Academic College at Wingate
Netanya, Israel
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