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SPEED-USGastric Emptying Time Influenced by Food Type and Physical Activity in Healthy Volunteers

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What is being tested

Physical activity after different type of meals

Behavioral
Who is being recruted

From 18 to 40 Years
+19 Eligibility Criteria
See all eligibility criteria
How is the trial designed

Diagnostic Study

Interventional
Study Start: June 2025
See protocol details

Summary

Principal SponsorMedical University of Warsaw
Study ContactMateusz Zawadka, MD, PhDMore contacts
Last updated: January 28, 2026
Sourced from a government-validated database.Claim as a partner

Study start date: June 1, 2025

Actual date on which the first participant was enrolled.

This study investigates how different types of meals and levels of physical activity affect the time it takes for the stomach to empty in healthy adults. Pulmonary aspiration during anesthesia, a serious complication, can occur if the stomach isn't empty. This risk is higher in people with certain health conditions or those taking specific medications. The study uses gastric ultrasound, a non-invasive method, to provide a real-time look at the stomach’s contents, which could help assess the risk of aspiration more accurately than just relying on fasting periods. Participants, aged 18 to 40, will take part in two sessions on different days. Before each session, they will follow specific dietary restrictions to ensure an empty stomach upon arrival, which will be checked using an ultrasound. Participants will be randomly assigned to consume one of three types of meals: high-fat, dairy-based, or fruit/vegetable. Ultrasound measurements will be taken at intervals after eating to track how quickly the stomach empties. On one day, participants will rest between measurements, while on the other day, they will walk at a moderate pace. This approach helps understand the influence of both meal type and physical activity on gastric emptying.

Official TitleFood Type and Physical Activity Influence on Gastric Emptying Time Assessed by Ultrasound in Healthy Volunteers
NCT06988397
Principal SponsorMedical University of Warsaw
Study ContactMateusz Zawadka, MD, PhDMore contacts
Last updated: January 28, 2026
Sourced from a government-validated database.Claim as a partner

Protocol

This section provides details of the study plan, including how the study is designed and what the study is measuring.
Design Details

60 patients to be enrolled

Total number of participants that the clinical trial aims to recruit.

Diagnostic Study

Diagnostic studies focus on improving how we detect or confirm a disease. They test new tools or techniques that could provide faster or more accurate diagnoses.

Eligibility

Researchers look for people who fit a certain description, called eligibility criteria: person's general health condition or prior treatments.
Criteria

Any sex

Biological sex of participants that are eligible to enroll.

From 18 to 40 Years

Range of ages for which participants are eligible to join.

Healthy volunteers allowed

If individuals who are healthy and do not have the condition being studied can participate.

Criteria

5 inclusion criteria required to participate
Age between 18 and 40 years
Ability and willingness to provide written informed consent
Agreement to comply with study procedures, including pre-study dietary restrictions
No history of gastrointestinal disease
Show More Criteria
14 exclusion criteria prevent from participating
Lack of informed consent
Allergy or intolerance to any of the foods used in the study meals
Medical conditions known to delay gastric emptying, including:
Obesity (BMI > 30 kg/m²)
Show More Criteria

Study Plan

Find out more about all the medication administered in this study, their detailed description and what they involve.
Treatment Groups
Study Objectives

One single intervention group is designated in this study

This study does not include a placebo group 

Treatment Groups

Group I

Experimental
Participants assigned to this arm will undergo an initial gastric ultrasound to confirm fasting status. They will then consume one of three types of meals: vegetable-based, meat-based, or dairy-based. A gastric ultrasound will be performed 15 minutes after meal ingestion. This will be followed by standardized physical activity (walking a predefined distance). Subsequent gastric ultrasound assessments will be performed at 3 hours and 6 hours post-meal, each followed by the same standardized physical activity. The purpose is to evaluate the impact of food type and intermittent physical activity on gastric emptying, as assessed by ultrasound.

Study Objectives

Primary Objectives

Secondary Objectives

Study Centers

These are the hospitals, clinics, or research facilities where the trial is being conducted. You can find the location closest to you and its status.

This study has 1 location

Suspended

Medical University of Warsaw

Warsaw, PolandOpen Medical University of Warsaw in Google Maps
Recruiting soonOne Study Center