Follow-up Study of Lung Function and Breathing in Children With Obesity
Re-examines lung function and exercise breathing in teens who had obesity as children.
Plain-language title generated from the registry record
Registry title: Respiratory Effects of Obesity in Children: Longitudinal Consequences After 6 Years of Aging
Key facts
- Where
- Dallas, United StatesSee the site
AI summary: who the study is looking for
From the trial's eligibility criteria. Machine-read from the registry text on this page, so it can be wrong. The registry text below and the trial team decide who can take part.
The trial is looking for teenagers who took part in an earlier study at ages 8-12, both with and without obesity, to be re-tested after 6 years.
- Age
- 14 Years to 18 Years
- Sex
- All sexes can join.
Main reasons for not taking part
- Children who cannot follow directions, do the tests properly, or keep appointments
- Pregnant women, or women who could be pregnant (sexually active and not using approved birth control)
- A significant disease that could put the child at risk or affect the results
- Non-English speakers
- Children whose exercise test was stopped because of an abnormal ECG or signs of heart or lung disease
Read by machine on 9 November 2026.
Could this be for you?
Answer for yourself. This is not a decision: only the study team can say whether you can take part.
- Are you between 14 and 18 years old?
Source: NCT06447246, who can take part
Where in United States
- Institute for Exercise and Environmental Medicine, UT Southwestern and Texas Health Presbyterian Hospital DallasDallas, United StatesNo longer taking part
Questions to ask the study team
- How often do I need to come in, and for how long each time?
- Are travel costs paid?
- Can I keep my own doctor?
- What happens if I want to stop?
Trial details
- Who runs it
- University of Texas Southwestern Medical Center
- Trial code
- NCT06447246
- Record updated
- 3 September 2026
- Original description
The purpose of the study is to re-examine body composition, respiratory function, exercise tolerance, and dyspnea on exertion (DOE) in children with obesity (CWO) and children without obesity (CWOO) who were originally studied as 8-12-year-olds between 2016-2023 (i.e., originally Tanner score ≤ 3; 90 participants; 26 CWOO \& 64 CWO).Read full original descriptionShow less
Respiratory Effects of Obesity in Children: Longitudinal Consequences After 6 Years of Aging
The purpose of the study is to re-examine body composition, respiratory function, exercise tolerance, and dyspnea on exertion (DOE) in children with obesity (CWO) and children without obesity (CWOO) who were originally studied as 8-12-year-olds between 2016-2023 (i.e., originally Tanner score ≤ 3; 90 participants; 26 CWOO \& 64 CWO).
Inclusion: The participants originally studied as 8-12-year-olds between 2016-2023 as part of the investigator's R01 HL136643.
Exclusion: If a child developed an abnormal ECG, showed other signs of clinical exercise intolerance, or signs of cardiovascular/lung disease during the exercise test, testing was terminated, and the child was referred to their personal physician for further evaluation; Presence of significant disease defined as a disease which in the opinion of the investigator may put the subject at risk because of participation in the study or a disease that may influence the results of the study or the subject's ability to participate in the study; Children not able to follow directions, adequately perform procedures (e.g., pulmonary function tests), or keep appointments (e.g., no shows for testing); Women who are pregnant or could possibly be pregnant (i.e. not using approved birth control measures and sexually active) will be excluded because of changes in body size during pregnancy and because unforeseeable risks to the fetus; Patients who are non-English speaking will be excluded from the study because the tests performed are very effort dependent, detailed and require technical communication between the staff and the patient. The investigators feel that a translator would not be able to translate the technical terms fast enough to instruct the patient in the testing.