Jumping your way to stronger arms? study tests Leg-to-Arm strength transfer
NCT ID NCT07339436
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looked at whether doing leg exercises like jumps can also improve upper-body strength and muscle size in teenage male basketball players. Fifty players aged 16-18 with at least 2 years of experience were split into groups doing either combined leg-and-arm plyometrics, arm-only exercises, or regular training. Over 8 weeks, researchers measured throwing distance, muscle thickness, hormone levels, and muscle electrical activity to see if leg training boosts arm performance.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Plyometric training (jump and push-up exercises)
- What this could lead to
- If successful, this could show that leg exercises alone can boost arm strength and muscle growth, helping coaches design more efficient training programs.
- What could go wrong
- This is a small, completed study in healthy teen athletes, so results may not apply to other groups. The effects on hormones and muscle activity are exploratory and may not lead to practical changes.
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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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50 people
The number who actually took part.
- Started
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Sep 2024
- Finished
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Mar 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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16 to 18 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.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Male basketball players with at least 2 years experience Exclusion Criteria: * injury
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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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Faculty of Sport Sciences, University of Birjand
Birjand, South Khorasan Province, 9717434765, Iran
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