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Preworkout supplement may boost tired muscles, small study suggests

NCT ID NCT07217210

Knowledge-focused Sponsor: Northern Illinois University Source: ClinicalTrials.gov ↗

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tested a multi-ingredient preworkout supplement in 13 healthy men aged 19-29. Researchers measured leg muscle torque and electrical activity during a fatigue protocol. The goal was to see if the supplement improves muscle performance when tired.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
Multi-ingredient preworkout supplement
What this could lead to
If it works, this could show that preworkout supplements boost muscle performance during fatigue, potentially aiding athletes.
What could go wrong
This is a very small, early study (13 healthy men) looking at short-term effects only. Results may not apply to others or predict long-term benefits.

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

13 people

The number who actually took part.

Started

Nov 2021

Finished

Apr 2022

Lead sponsor

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

19 to 29 years

Sex

Male participants only

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show 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, 19-29 years of age, one year of resistance training experience Exclusion Criteria: * Subjects were eligible to participate if they did not report: 1) cardiovascular disease, metabolic, renal, hepatic, or musculoskeletal disorders; 2) use of any medications; 3) use of nutritional supplements; 4) habitual use of caffeine (≥ 1 caffeinated beverage per day); or 5) participation in another clinical trial or investigation of another nutritional product within 30 days of screening/enrollment.

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Healthy adult male

Contacts and locations

Locations

  • Northern Illinois University

    DeKalb, Illinois, 60115, United States

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