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To determine the validity of the Gx Sweat Patch in measuring sweating rate and sweat chloride concentration during moderate-high intensity practice against well-established reference methods in field conditions with basketball athletes
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Validation. Gx sweat collection patch | Other | Left ventral forearm placement using Epicore Biosystems Gx patch |
|
| Validation. Reference sweat collection patch | Other | Right ventral forearm placement using a well-established methodology as published in peer-reviewed journals |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Gx sweat patch | Other | Adhesive-backed flexible epidermal wearable regional sweat patch to collect and analyze sweat via microfluidics and colorimetric assay |
|
| Measure | Description | Time Frame |
|---|---|---|
| Regional sweat chloride concentration | Gx patch vs. reference patch during exercise. Gx patch analyzed by colorimetry via smartphone app. Reference patch analyzed with ion chromatography | Average across a single practice session on 1 day |
| Measure | Description | Time Frame |
|---|---|---|
| Regional sweating rate | Gx patch vs. reference patch during exercise. Gx patch analyzed by microfluidic reading with Smartphone. Reference patch analyzed with gravimetry | Average across the same single practice session on the same 1 day as the primary outcome |
| Whole body sweating rate |
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Inclusion Criteria:
Exclusion Criteria:
No females in NBA G-League
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| Name | Affiliation | Role |
|---|---|---|
| Lindsay B Baker, PhD | PepsiCo Global R&D, Gatorade Sports Science Institute (GSSI) Barrington, IL | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| NBA G League Ignite Team Site Ultimate Fieldhouse, 2675 Mitchell Dr. | Walnut Creek | California | 94598 | United States |
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Each subject serves as their own control. Both devices are worn during the same exercise session.
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| Reference sweat patch | Other | Adhesive Tegaderm with absorbent pad regional sweat patch to collect sweat, followed by standard benchtop gravimetry and ion chromatography methods to analyze sweat |
|
Change in body mass from pre- to post-exercise, corrected for fluid/food intake and urine loss. Body mass measured to the nearest 0.01 kg using a digital platform scale |
| Measured one time to represent the average across the same single practice session on the same 1 day as the primary outcome |