Using the Smart Underwear Device to Determine a Baseline of Flatus Activity Normalized to Fiber Intake

NCT ID: NCT07134543

Last Updated: 2025-12-23

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Total Enrollment

500 participants

Study Classification

OBSERVATIONAL

Study Start Date

2025-12-01

Study Completion Date

2026-12-01

Brief Summary

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The goal of this observational study is to quantify the typical frequency of flatulence in healthy adults, normalized by fiber intake, using the Smart Underwear device. The study will enroll a maximum of 500 adults across the United States who will wear the device for three consecutive days while continuing their usual daily activities.

The main questions it aims to answer are:

* What is the average frequency of flatus events in a general adult population?
* How does dietary fiber intake influence flatus frequency and microbiome activity?

Researchers will collect gas sensor data from the Smart Underwear device alongside dietary information logged in a mobile app to assess the relationship between diet and microbiome activity.

Participants will:

* Complete an online eligibility survey, consent form, and background questionnaire.
* Wear the Smart Underwear device for at least 12 hours per day for three consecutive days.
* Log all meals with photos using a custom smartphone app.
* Complete a short post-wear survey about device comfort and usability.

All study procedures will be conducted remotely. Data will be analyzed in de-identified form to evaluate baseline flatulence patterns, normalized to fiber intake, in the general adult population.

Detailed Description

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Conditions

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All Health Backgrounds to Determine a Baseline of Flatus Activity

Study Design

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Observational Model Type

ECOLOGIC_OR_COMMUNITY

Study Time Perspective

PROSPECTIVE

Study Groups

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American adults

American adults that are at least 18 years old, live in the United States, are not pregnant or lactating, and agree to wear the Smart Underwear device.

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

* 18 years old or older
* Lives in the US
* Is not pregnant or lactating
* Is willing to wear the Smart Underwear device as instructed in the study procedures

Exclusion Criteria

* Younger than 18 years old
* Lives outside the US
* Is pregnant or lactating
* Is not willing to wear the Smart Underwear device as instructed in the study procedures
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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University of Maryland, College Park

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Bioscience Research Building

College Park, Maryland, United States

Site Status NOT_YET_RECRUITING

University of Maryland Bioscience Research Building

College Park, Maryland, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Brantley Hall, PhD

Role: CONTACT

Phone: 5407978040

Email: [email protected]

Facility Contacts

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Brantley Hall, PhD

Role: primary

Branley Hall, PhD

Role: primary

Other Identifiers

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Human Flatus Atlas

Identifier Type: -

Identifier Source: org_study_id