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

ConditionSweat Rate
Trial statusRecruiting
Trial phaseNot listed
Trial typeObservational
Biological sexFemale
Age13+
SponsorPepsiCo Global R&D

About this trial

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).

Eligibility criteria

This trial accepts healthy volunteers

Qualifiers

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.

Disqualifiers

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

Trial population

Healthy female athletes in coach-led team sports

Trial design

Design model

Other

Time perspective

Prospective

Treatments tested in this trial

  • Sweat patch

    Other intervention

    Wear sweat patch during regular team sports practice session

Treatment groups

500 Participants
are divided into 1 treatment group
Group A: Female team sports athletes aged 13 and over1 intervention

Trial outcomes

Primary outcomes

1

Regional sweat [Na+]

Absorbent patch technique (3M TegadermTM + Pad; 3M, St. Paul, MN; pad size 10 cm2 with an absorbent capacity of \~1.3 g) to left and right dorsal arm. An additional patch on the right scapula may be added depending on the accessibility to the sites on the body and the nature of the sport. Analyzed using a HORIBA (LAQUAtwin Na-11)

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.
2

Whole body sweat rate (WBSR) WBSR

Pre- versus post body mass on scale, taking into account food and fluid intake, urine and stool output

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
3

Rate of sweat sodium loss (RSSL)

The rate of sodium sweat loss (RSSL) will be determined as the product of sweat \[Na+\] and whole-body sweat rate (WBSR)

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 outcomes

1

Urine specific gravity (USG)

Unit not applicable

Time frame
Pre-exercise at one coach-led normal training practice session.
2

Fluid intake

Weighing pre-filled bottles before and after exercise, beverage choice of water, and Gatorade, or G2

Time frame
One day from start through end of a single coach-led normal training practice session. Duration will be dictated by coaching staff.
3

Carbohydrate intake

Grams of carbohydrate consumed through food and beverages

Time frame
One day from start through end of a single coach-led normal training practice session. Duration will be dictated by coaching staff.

Other outcomes

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