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Resting Energy Expenditure Using a Handheld Calorimeter (CalVal)

This study has been completed.
Information provided by (Responsible Party):
University of British Columbia Identifier:
First received: January 17, 2013
Last updated: May 29, 2015
Last verified: May 2015

High prevalence of obesity in children has increased associated complications such as type 2 diabetes, hypertension and fatty liver disease. Dietitians develop a meal plan that restricts caloric intake by estimating the resting and total daily energy expenditures.Estimation of energy needs is most commonly done using predictive equations. Reliable and valid energy requirements can be obtained using a traditional metabolic system, however this is an expensive option. Handheld indirect calorimeters may be a good alternative to measure energy needs. Several studies have been conducted to determine the validity and accuracy of handheld calorimeters in adults and health children, however, to the best of our knowledge, there are no such studies in the overweight and obese pediatric population.

The purpose of this study is to validate a handheld indirect calorimeter against a traditional metabolic system in overweight and obese children.

If handheld calorimeters can accurately measure resting energy expenditure in overweight and obese adolescents, dietitians will have an opportunity to tailor pediatric weight management interventions based on parameters that are unique to each individual.


Study Type: Observational
Study Design: Observational Model: Case-Only
Time Perspective: Cross-Sectional
Official Title: Validating a Handheld Indirect Calorimeter in Overweight and Obese Pediatric Population

Further study details as provided by University of British Columbia:

Primary Outcome Measures:
  • Resting Energy Expenditure as measured by the traditional Indirect Calorimeter(metabolic cart) and the handheld indirect calorimeter in standardized conditions [ Time Frame: 1 hour ]

Enrollment: 75
Study Start Date: May 2012
Study Completion Date: February 2015
Primary Completion Date: June 2014 (Final data collection date for primary outcome measure)
Obese children


Ages Eligible for Study:   13 Years to 18 Years   (Child, Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
Obese children aged 13-18y of both gender

Inclusion Criteria:

  • 13-18y of age
  • BMI 85th percentile or more
  • No severe illness, neurological and development issues
  • not on insulin
  • Able to fast overnight

Exclusion Criteria:

  • not 13-18y of age
  • BMI under 85th percentile
  • ill or have neurological and development issues
  • on insulin
  Contacts and Locations
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Please refer to this study by its identifier: NCT01776944

Canada, British Columbia
Child & Family Research Institute
Vancouver, British Columbia, Canada, V5Z4H4
Sponsors and Collaborators
University of British Columbia
Principal Investigator: Rajavel Elango, Ph.D Child & Family Research Institute/University of British Columbia
  More Information

Responsible Party: University of British Columbia Identifier: NCT01776944     History of Changes
Other Study ID Numbers: H12-00364
Study First Received: January 17, 2013
Last Updated: May 29, 2015

Keywords provided by University of British Columbia:
Resting energy expenditure
Handheld calorimeter
Obese and overweight
Pediatrics processed this record on April 28, 2017