To determine the validity of a prototype patch in measuring sweating rate and sweat electrolyte concentration during moderate intensity exercise against well-established reference methods in a controlled laboratory and in field conditions.
Who can participate
Age range15 Years – 45 Years
SexALL
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Inclusion Criteria:
* Subject is male or female
* Subject is 15-45 years
* Subject is moderately-trained (engages in moderate-intensity, intermittent, or steady-state exercise at least 4 days per week for at least 1 hour at a time)
* Subject is capable of moderate-intensity, intermittent exercise for 1-2 hours as assessed by recent training history
* If participating in Study Session 1, 2, 3, or 4, subject has a treadmill VO2max ≥ 42 ml/kg/min if male or ≥ 38 ml/kg/min if female, as measured during the screening at the GSSI laboratory
* If participating in Study Session 1, 2, 3, or 4, subject has a normal fasting blood glucose (70-110 mg/dl), as measured during the screening at the GSSI laboratory
* If participating in Study Session 1, 2, 3, or 4, subject has a normal resting blood pressure (\< 140/90 mmHg), as measured during the screening at the GSSI laboratory
* If participating in Study Session 1, 2, 3, or 4, subject has a normal resting and graded exercise EKG, as measured during the screening at the GSSI laboratory
* If participating in Study Session 1, 2, 3, or 4, willing to be shaved at patch sites
* If participating in Study Session 3 or 4, willing to undergo a nude shower by an investigator of the same sex for collection of sweat electrolytes in the whole body wash procedure
* If participating in Study Session 5 or 6, subject is a trained team-sport athlete currently participating in training/competition at IMG Academy
Exclusion Criteria:
* Subject is pregnant (s…