Could regular workouts strengthen male fertility? a trial puts exercise to the test
NCT ID NCT07778576
First seen Aug 21, 2026 · Last updated Aug 25, 2026 · Updated 2 times
Summary
This trial asks whether a 12-week program of combined aerobic and resistance exercise can improve semen quality and metabolic health in healthy adult men. About 34 men aged 18-24 will either join a supervised exercise group or continue their usual routine. Sperm concentration, motility, morphology, and metabolic biomarkers are measured before and after the program to see if exercise makes a difference.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- A 12-week supervised combined aerobic and resistance exercise program
- What this could lead to
- If regular combined exercise improves sperm quality and metabolic health, it could point to a simple lifestyle approach for supporting male fertility.
- What could go wrong
- This is a small, non-randomized study in healthy young men, so results may not apply broadly. Exercise effects on sperm can vary, and improvements are not guaranteed.
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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34 people
The number who actually took part.
- Started
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Mar 2025
- Finished
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Jul 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.
- Ages
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18 to 24 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 18-24 years. Being generally healthy and able to participate safely in an aerobic and resistance exercise program. Voluntarily agreeing to participate and providing written informed consent. Being willing and able to provide semen and blood samples at baseline and after the 12-week study period. Being able to complete the study assessments and comply with the study procedures. Exclusion Criteria: * Presence of a diagnosed reproductive system disorder or a medical condition known to affect semen quality. Presence of a chronic, cardiovascular, metabolic, musculoskeletal, or other medical condition that could prevent safe participation in exercise. Current use of medication, hormonal treatment, or nutritional supplementation known to influence reproductive or metabolic outcomes. Presence of an acute illness or injury during the assessment or intervention period that prevented participation. Failure to complete the baseline or post-intervention assessments. Failure to comply with the prescribed exercise program or study procedures.
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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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Sivas Cumhuriyet University
Sivas, 58140, Turkey (Türkiye)