Adiposity Clinical Trial
Official title:
Measuring Free-living Energy Expenditure Using Direct Calorimetry
Verified date | January 2016 |
Source | University of Colorado, Denver |
Contact | n/a |
Is FDA regulated | No |
Health authority | United States: Institutional Review Board |
Study type | Observational |
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.
Status | Completed |
Enrollment | 39 |
Est. completion date | January 2016 |
Est. primary completion date | November 2015 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | Both |
Age group | 18 Years and older |
Eligibility |
These studies will be conducted in Denver. CO. Eligible participants will be those local
to the University. Study #1 (Effects of clothing and temperature) Inclusion Criteria - Body mass index (BMI) 19-25 kg/m2 - Age 18-45 years Exclusion criteria - 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 |
Time Perspective: Cross-Sectional
Country | Name | City | State |
---|---|---|---|
United States | University of Colorado Denver Anschutz Medical Campus | Aurora | Colorado |
Lead Sponsor | Collaborator |
---|---|
University of Colorado, Denver | National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), University of Alabama at Birmingham |
United States,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Energy expenditure | The aim of this trial is to determine the accuracy of measuring energy expenditure using portable direct calorimetry. Energy expenditure will be measured with a new device worn on the arm that measures heat flux. The accuracy of the new device will be compared against simultaneous measurements of energy expenditure made using indirect calorimetry and doubly labeled water. | 24 hrs to 2 weeks | No |
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