Energy Expenditure and Gastric Bypass Surgery Study
Completed
Conditions studied: Morbid Obesity
In brief
The aim of this study is to assess whether the energy you burn daily increases after you have bariatric surgery. Until now, there hasn't been an effective way of measuring all activity on a daily basis. Physical Activity Monitoring System (PAMS) has been created just for this purpose. PAMS is a garment that can be worn under your clothes, that records body position and movement through space. We will use the PAMS along with special water to measure your total daily energy expenditure right before surgery, and again 6 months and 24 months after surgery. Study subjects will be initially recruited from OHSU IRB-Approved advertisements. Interested study subjects will be screened through an informal telephone interview. If there are no health conditions that exclude participation, subjects will be asked to give IRB-approved consent. Subjects will be consenting to undergo three 18 day phases. Each phase will consist of 15 daily visits to the Clinical \& Translational Research Center (CTRC), and 3 full day and nights in the CTRC.
Key facts
- Study ID
- NCT00671957
- Run by
- Oregon Health and Science University
- People needed
- 40
- Starts
- 2006-02-01
- Expected to finish
- 2019-06-01
- Last updated by the study team
- 2019-06-21
Who can join
Age: 18 and older, up to 80. Sex: any. Healthy volunteers: not accepted.
You may qualify if…
- No acute illnesses
- Weight less than 227 kg (limit of Bod Pod and Treadmill)
- Able to walk at 2.4 mph for 15 minutes (needed for the energy expenditure testing)
- No tobacco use
- Ability to stop alcohol consumption during test phases
- For female subjects; no plans for pregnancy in 24 months and menstrual cycles of 21-35 days
- No history of eating disorder
- No history of current substance abuse
- No history of chest pain or shortness of breath at rest or on exertion.
- Negative pregnancy in women.
You may not qualify if…
- Informed consent not obtained
- Prior bariatric surgery
- Unlikely to comply with follow-up protocol (e.g., travel time from home too long to make visits feasible, unwilling to return for follow-up visits)
- Unable to communicate with local study staff
- Lactating women
Where it is running
- Oregon Health & Science University — Portland, Oregon, United States
Full record on ClinicalTrials.gov
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