Rest between sets: the secret to stronger workouts without the pain?
NCT ID NCT07679971
First seen Jul 01, 2026 · Last updated Sep 11, 2026 · Updated 2 times
Summary
This study looks at how different rest intervals between sets of flywheel resistance exercise affect muscle damage and performance in men who haven't done strength training in the last six months. Participants do a single session of lower-body exercises with either 1, 2, or 3 minutes of rest between sets. Researchers measure changes in muscle strength, soreness, swelling, and blood markers over several days to see which rest period leads to the best recovery and performance.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- flywheel resistance exercise with varying inter-set rest intervals
- What this could lead to
- If successful, this study could help design more effective and safer resistance training programs by identifying optimal rest intervals to minimize muscle damage while maximizing performance.
- What could go wrong
- This is a small, early-stage study in untrained men only, so results may not apply to women, trained individuals, or other exercise types. The outcomes are indirect markers of muscle damage, not direct measures of injury or recovery.
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
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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
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About 30 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jun 2026
- Expected to finish
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Oct 2026
An estimate. End dates often move.
- 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.
- Ages
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18 to 40 years
- Sex
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Male participants only
- 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: * Age between 18 and 40 years; * Apparently healthy and clinically able to perform physical exercise; * No participation in structured resistance training during the previous 6 months; * Agreement to comply with all study visits and procedures; * Signed informed consent form. Exclusion Criteria: * History of lower-limb musculoskeletal injury or surgery that may impair performance or safety during the proposed exercise protocol; * Current pain, injury, or functional limitation in the lower limbs; * Use of ergogenic aids that may affect physical performance or muscle recovery; * Use of analgesic or anti-inflammatory medication during the study period; * Failure to attend the scheduled visits required for the primary outcome assessment.
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As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Federal University of Viçosa
RECRUITINGViçosa, Minas Gerais, 36570-900, Brazil
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