Status:
COMPLETED
Measuring Free-living Energy Expenditure Using Direct Calorimetry
Lead Sponsor:
University of Colorado, Denver
Collaborating Sponsors:
University of Alabama at Birmingham
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Conditions:
Temperature
Clothing
Eligibility:
All Genders
18+ years
Brief Summary
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 pie...
Detailed Description
Current approaches to measuring total daily energy expenditure (TDEE) in free-living individuals are limited by cost, accuracy, and lack of sensitivity to specific activities. Accurate, reliable, and ...
Eligibility Criteria
Inclusion
- 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
Exclusion
Key Trial Info
Start Date :
January 1 2012
Trial Type :
OBSERVATIONAL
Allocation :
ACTUAL
End Date :
January 1 2016
Estimated Enrollment :
39 Patients enrolled
Trial Details
Trial ID
NCT01454882
Start Date
January 1 2012
End Date
January 1 2016
Last Update
January 11 2016
Active Locations (1)
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1
University of Colorado Denver Anschutz Medical Campus
Aurora, Colorado, United States, 80045