Sweat patches map sodium loss in female athletes
NCT ID NCT06995768
First seen Sep 17, 2026 · Last updated Sep 18, 2026 · Updated 1 time
Summary
Researchers are measuring how much female athletes sweat and how much sodium they lose during normal team practices. The study covers basketball, soccer, volleyball, cheer, flag football, and softball, and includes athletes aged 13 and older. Participants wear small absorbent patches on their arms and back while a scale and drink measurements track body mass and fluid intake. The goal is to build reference data for female athletes, a group often underrepresented in sweat research.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- sweat patch worn during practice
- What this could lead to
- If researchers build reliable reference ranges, coaches and sports doctors could tailor hydration and electrolyte advice to female athletes instead of relying on data gathered mostly from men.
- What could go wrong
- This is an observational study, so it cannot prove that any hydration strategy improves performance or health. Sweat measurements vary with heat, fitness, and sport, and a single practice session may not represent an athlete's typical losses.
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Study facts
What this study's own registry entry says, in plain language.
- Participants
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516 people
The number who actually took part.
- Started
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Apr 2025
- Finished
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Nov 2025
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
Healthy female athletes in coach-led team sports
- Ages
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13 years and older
- Sex
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Female 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: Subject is female * Subject is 13yrs+ * Subject has been cleared for sport participation by their personal or team physician and/or coach-led practice/training. * Subject is participating in sport on the youth/ amateur/ collegiate/professional/elite level * If under 18, a parental/guardian consent form will be completed. Exclusion Criteria: * As this study is undertaken at the athletes training facility, the medical staff at the team/club will advise on who should/ should not take part. * Subject has an allergy to adhesives (e.g., experiences rash reactions to typical adhesive bandages
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Genom att skicka in godkänner du våra Användarvillkor
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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Gatorade Sports Science Institute
Chicago, Illinois, 60607, United States
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