CosMed FitMate Indirect Calorimetry System

The CosMed FitMate is a compact, desktop indirect calorimetry system designed to measure Resting Metabolic Rate (RMR), Resting Energy Expenditure (REE), and Basal Metabolic Rate (BMR). As one of the first portable metabolic analyzers of its kind, the FitMate delivers accurate, real-time oxygen consumption (VO2) measurement in a simple and efficient format.

How the FitMate Works

Ideal for clinical, wellness, and performance environments, the FitMate provides reliable metabolic testing without the complexity of larger systems. The FitMate measures oxygen consumption (VO2) in real time using a patented dynamic mixing chamber that samples expired gas. Gas exchange data is collected continuously and averaged every 30 seconds (or longer), ensuring stable and clinically useful results.


At the completion of testing, results are printed instantly using the built-in thermal printer.

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What the CosMed FitMate Measures

  • Resting Metabolic Rate (RMR)
  • Resting Energy Expenditure (REE)
  • Basal Metabolic Rate (BMR)
  • Oxygen Consumption (VO2)


Testing is simple, fast, and designed to integrate easily into clinical workflows.

Included Monitoring Tools

The FitMate system includes tools to support comprehensive metabolic and activity assessment:


  • Skin-fold caliper
  • FitMate pedometer
  • FitMate PC software


These additional monitoring components help professionals track physical activity and body composition alongside metabolic measurements.

The CosMed FitMate is designed for facilities and professionals who need accurate, efficient resting metabolic assessment without the complexity of full exercise testing systems. Its compact design and straightforward workflow make it ideal for environments focused primarily on resting energy expenditure (REE) and metabolic rate evaluation.


The FitMate is particularly well suited for:


  • University health programs
  • Personal training studios
  • Registered dietitians
  • Nutritionists
  • Hospitals and outpatient clinics
  • Clinical nutrition programs
  • Weight management and bariatric programs
  • Endocrinology practices
  • Medical weight loss centers

Ideal Applications for the CosMed FitMate

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Sales & Support for CosMed FitMate Products

Susquehanna Micro distributes CosMed metabolic and cardiopulmonary assessment systems throughout the United States, supporting hospitals, pulmonary clinics, rehabilitation programs, and research institutions with product consultation and ongoing service coordination.


Contact us   to learn more about the CosMed FitMate system.

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