Measuring Free-living Energy Expenditure Using Direct Calorimetry
Completed
Conditions studied: Temperature, Clothing, Sex, Age, Adiposity
In brief
Although instruments such as pedometers and heart rate monitors are helpful for those who use exercise to maintain their weight, they do not actually measure calories expended, which is a critical piece of information necessary for sustained weight management. The purpose of this study is to determine the accuracy of a new device that measures calories burned based upon heat produced by the body. Since heat production is directly proportional to calories burned, this device has the potential to accurately measure energy expended in many different settings.
Key facts
- Study ID
- NCT01454882
- Run by
- University of Colorado, Denver
- People needed
- 39
- Starts
- 2012-01-01
- Expected to finish
- 2016-01-01
- Last updated by the study team
- 2016-01-11
Who can join
Age: 18 and older. Sex: any. Healthy volunteers: accepted.
You may qualify if…
- Body mass index (BMI) 19-25 kg/m2
- Age 18-45 years
You may not qualify if…
- Self-reported acute or chronic disease (e.g. diabetes, heart disease, thyroid disease)
- Tobacco use (cigarettes, cigars, or chewing tobacco) within the past 6 months
- Females who are or who were recently (past year) pregnant or lactating.
- Resting diastolic blood pressure > 100 mm HG or resting systolic blood pressure > 160 mm HG
- Contra-indications to exercise (e.g. orthopedic limitations)
- Study #2 (Effect of age, sex, and adiposity)
- Inclusion Criteria • Age ≥18 yrs
- Exclusion criteria
- Weight > 300 lbs (due to DXA limitations)
- Self-reported acute or chronic disease (diabetes, heart disease, thyroid disease)
- Tobacco use (cigarettes, cigars, or chewing tobacco) within the past 6 months
- Females who are or who were recently (past year) pregnant or lactating.
- Resting diastolic blood pressure > 100 mm HG or resting systolic blood pressure > 160 mm HG
- Contra-indications to exercise (e.g. orthopedic limitations)
- Study #3 (Doubly labeled water)
- Inclusion Criteria
- Age ≥18 yrs
- Exclusion criteria
- Weight > 300 lbs (due to DXA limitations)
- Self-reported acute or chronic disease (diabetes, heart disease, thyroid disease)
- Tobacco use (cigarettes, cigars, or chewing tobacco) within the past 6 months
- Females who are or who were recently (past year) pregnant or lactating
Where it is running
- University of Colorado Denver Anschutz Medical Campus — Aurora, Colorado, United States
Full record on ClinicalTrials.gov
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