One set or many? study tests best way to build muscle in sedentary men
NCT ID NCT07337304
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study compared doing one set versus multiple sets of resistance exercises in 34 sedentary men aged 18-40. Participants were randomly assigned to a single-set group, a multiple-set group, or a no-exercise control group. Researchers measured changes in muscle strength, size, and power after a structured training program. The goal was to find the optimal training volume for beginners.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Resistance training (structured exercise program using free weights and machines)
- What this could lead to
- If successful, this study could help determine the most effective number of exercise sets for building strength and muscle in people new to training.
- What could go wrong
- This is a small, completed study with only 34 participants. Results may not apply to women, older adults, or trained individuals. No long-term follow-up was done.
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
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34 people
The number who actually took part.
- Started
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Aug 2022
- Finished
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Dec 2022
- 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: * Male participants aged between 18 and 40 years * Sedentary lifestyle (no structured resistance training in the previous 6 months) * Apparently healthy, with no known cardiovascular, metabolic, or musculoskeletal disorders * Ability to participate in resistance training exercise * Willingness to provide written informed consent Exclusion Criteria: * Participation in regular resistance or structured exercise training within the past 6 months * History of musculoskeletal injury or surgery that could limit exercise performance * Presence of cardiovascular, neurological, or metabolic disease * Use of medications or supplements known to affect muscle function or performance * Any condition deemed unsafe for participation by the investigators
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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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Inonu University, Faculty of Sport Sciences
Malatya, 44280, Turkey (Türkiye)
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