Purpose of the study. To develop a wearable sensor that can measure the concentration of chloride ions in sweat. Help the researchers develop a sensor that could be used for diagnosis and clinical management of individuals with cystic fibrosis, as well as monitoring performance-related dehydration in athletes.
Location. Tests will be performed in Croft Hall, room G10, in the Searson Lab.
Study procedures. Participants will have a 30-minute resting evaluation and will then be asked to walk on a treadmill at fixed speeds for up to 60 minutes while wearing one or more investigational sensors, along with conventional wearable fitness sensors to measure physiological parameters such as heart rate, breath rate, sweat rate, and skin temperature.
Eligibility criteria. Healthy individuals (male and female), 18 to 70 years old, who work out at least 2 times per week.
Benefits to participants. $20-30 Amazon gift card upon completion of each test. The length of the walk will depend on the participant's sweat rate and willingness to continue. Participants who walk for 30 minutes or less will receive a $20 gift card, and participants who walk for more than 30 minutes will receive a $30 gift card.
Time commitment. Each test will consist of 30-60 minutes of exercise, but the full test visit takes 2 hours. At least one visit will be required for each participant. Participants completing multiple visits will be restricted to a maximum of one test per day.
Principal investigator: Peter Searson, Institute for NanoBioTechnology, 100 Croft Hall, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218
For more information:
Grant Kitchen, Email: searsonsweattest@gmail.com. Call or text 443-796-5990.
