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Recruiting NCT06995768

Normative Data for Sweating Rate, Sweat Sodium Concentration and Sweat Sodium Loss in Female Athlete

— Observational Sweat Rate

For patients and families

In plain language

An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.

What is being studied
The protocol lists: Sweat patch.
Who it may be relevant to
Registry conditions: Sweat Rate. Basic parameters: from 13 years · Female.
What needs checking
Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
Where it takes place
United States
Next step
Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →

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Overview

The main objectives are to determine sweat sodium concentration \[Na+\], whole body sweat rate (WBSR) and rate of sweat sodium loss (RSSL) in female athletes aged 13 and above during their normal planned training session across various sports (basketball, soccer, volleyball, cheer, flag football and softball).

Detailed description

The testing procedures will follow the standardized Gatorade Sports Sciences GSSI sweat testing protocol using the absorbent sweat patch technique, to measure local sweat \[Na+\], which will be normalized to whole-body sweat \[Na+\]. Whole-body sweat rate (WBSR) will be calculated based on changes in exercise body mass, pre to post training, and adjusted for food and fluid intake, as well as urine and stool loss. The rate of sweat sodium loss (RSSL) will be determined as the product of sweat \[Na+\] and WBSR.

Secondary outcomes are pre-exercise hydration status measured by urine specific gravity (USG) and estimation of menstrual cycle phase collected by self-report date of last menstrual cycle.

Athletes will complete a single day of testing, unless a repeat test is requested by the team's performance staff. In this case, athletes will undergo the exact same protocol as described above.

Interventions

  • Other Sweat patch
    Wear sweat patch during regular team sports practice session

Primary outcome measures

  • Regional sweat [Na+] [Time frame: One day from start through end of a single coach-led normal training practice session. Practice duration will be dictated by coaching staff.]
  • Whole body sweat rate (WBSR) WBSR [Time frame: One day from start through end of a single coach-led training normal training practice session. Practice duration will be dictated by coaching staff.A]
  • Rate of sweat sodium loss (RSSL) [Time frame: One day from start through end of a single coach-led normal training practice session. Duration will be dictated by coaching staff.]
Secondary outcome measures (3)
  • Urine specific gravity (USG) [Time frame: Pre-exercise at one coach-led normal training practice session.]
  • Fluid intake [Time frame: One day from start through end of a single coach-led normal training practice session. Duration will be dictated by coaching staff.]
  • Carbohydrate intake [Time frame: One day from start through end of a single coach-led normal training practice session. Duration will be dictated by coaching staff.]

Eligibility criteria

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

Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.

Healthy volunteers: Yes

Study design

Observational model
Other

Study locations

United States · 1 center
  • Gatorade Sports Science Institute — Chicago

Identifiers

NCT: NCT06995768 · PEP-2506

Primary sources (government registries)

View this study on ClinicalTrials.gov ↗