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Related Concept Videos

Calorimetry01:19

Calorimetry

When objects at different temperatures are placed in contact with each other but isolated from everything else, they attain thermal equilibrium. A container that prevents heat transfer in or out is called a calorimeter, and the use of a calorimeter to make measurements is called calorimetry. Generally, these measurements involve heat or specific heat capacity. The term "calorimetry problem" is used for any problem where the specified objects are thermally isolated from their surroundings. An...

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A consensus guide to preclinical indirect calorimetry experiments.

Alexander S Banks1, David B Allison2, Thierry Alquier3,4

  • 1Division of Endocrinology, Diabetes, and Metabolism, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA. asbanks@bidmc.harvard.edu.

Nature Metabolism
|September 24, 2025
PubMed
Summary
This summary is machine-generated.

This guide proposes consensus standards for indirect calorimetry to improve mammalian metabolism research. Standardizing units and data normalization will enable better data comparison and accelerate clinical applications for metabolic diseases.

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Area of Science:

  • Metabolic research
  • Physiology
  • Biomedical engineering

Background:

  • Mammalian metabolism and body weight regulation are complex.
  • Indirect calorimetry estimates whole-body energy expenditure via respiratory gas exchange.
  • Inconsistent units and normalization methods hinder progress in metabolic research.

Purpose of the Study:

  • Establish consensus standards for indirect calorimetry experiments and analysis.
  • Unify methods for more consistent, meaningful, and reproducible results.
  • Facilitate data comparison across research datasets and create a machine-readable data repository.

Main Methods:

  • Proposing community-driven standards for indirect calorimetry.
  • Defining consistent measurement units.
  • Recommending standardized data normalization techniques.

Main Results:

  • A framework for unified indirect calorimetry data analysis.
  • Improved accuracy and depth in interrogating mammalian metabolism.
  • Foundation for a machine-readable metabolic data repository.

Conclusions:

  • Standardization in indirect calorimetry is crucial for advancing metabolic research.
  • Shared standards will accelerate the translation of basic science findings into clinical applications.
  • This initiative aims to improve understanding and treatment of metabolic diseases.