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Research

Metabolic Function

Metabolic Function

 

Overview

Fitness Assessment

Overview

iWorx Metabolic Measurement Solutions are compact, cost effective and easy-to-use systems capable of accurately and reliably measuring and analyzing oxygen consumption and carbon dioxide production in resting and exercising subjects in support of:

– Human exercise physiology research
– Small animal metabolic research
– Fitness assessment

Systems

iWorx Metabolic Measurement Solutions are compact, cost effective and easy-to-use systems for human resting and light activity applications and small- to medium-sized animals.

Human Applications

Metabolic CartMC-TA-200V Metabolic Cart for Human VO2 Max Measurement

The MC-TA-200V is optimized for recording and measuring Basal Metabolic Rate, Resting Metabolic Rate, Respiratory Exchange Ratio, Sedentary to light activity VO2 and VCO2, and VO2 Max. The system includes the GA-200 Gas Analyzer,TA control module, spirometer, Polar Heart Rate Monitor/Transmitter/Receiver, mixing chamber and LabScribe software with the Metabolic Calculations Module.

Details

Animal Applications

mc-140-520peak

MC-520Peak and MC-140Peak Small Animal Metabolic Carts

These systems are suitable for recording and measuring Respiratory Quotient, VO2 and VCO2 in small- to medium-size animals. The systems include the IX-Peak recorder and Gas Analyzer,  LabScribe software with the Metabolic Calculations Module and either a 1.4 L or 5.2 L animal chamber.

Details

 

 

Components

iWorx metabolic systems are configured from a wide range of high performance components, optimized for each application. Components include control units, probes, catheters, calibration devices, monitors, recorders, cables, and software. Click on the links below for more information on each component.

Gas Analyzer
iWorx Gas AnalyzerGA-200 CO2 and O2 Respiratory Gas Analyzer with Calibration KitThe GA-200 CO2 and O2 Gas Analyzer provides a 10 millisecond response time which allows measurement of changes in respiratory gas concentrations. The GA-200 uses laser diode absorption technology to measure oxygen concentrations from 0-100%, and infrared detection to measure carbon dioxide concentrations from 0 to 13%.
Spirometry
SP-304 SpirometerSP-304 SpirometerCapable of measuring respiratory flows and volumes.
A-FH-100 Reusable 1000L Spirometry Flow HeadA-FH-1000 Reusable 1000L Spirometry Flow Head
Components and Accessories
PHRM-100 Polar Heart MonitorPHRM-100 Polar® Heart Rate Monitor Transmitter/Receiver Set
Pt-104 Pulse PlethysmographPT-104 Pulse Plethysmograph
Recorder
IX-TAIX-TA-220 Control ModuleWorx TA Control Module is the heart of iWorx TA metabolic systems and is designed to remove many of the tedious set-up and calibration routines typically required to perform a lab. Users simply plug in the sensors and start recording and analyzing data. No other lab system is that simple.

 

Software

Fitness Assessment

LS-MC Metabolic Calculations Module

The Metabolic Calculations Module automates and streamlines both the analysis and reporting of metabolic parameters from a test subject.  The calculations are derived from the input data acquired during a test which would typically include oxygen and carbon dioxide concentrations, lung volumes, and heart rates.  Raw data can be viewed in real-time within the LabScribe Main window.      

The LS-MC module calculates the following parameters:

  • Relative and absolute oxygen consumption (VO2)
  • Relative and absolute carbon dioxide production (VCO2)
  • Respiratory Exchange Ratio (RER)
  • Ventilatory Equivalent (VE/VO2)
  • Expired Minute Ventilation (VE)
  • Metabolic Equivalent (METS) and more

The Metabolic Calculations Module also allows these parameters to be plotted against time or each other to yield valuable information about the aerobic fitness of the subject. These plots include:

  • VO2, VCO2, RER vs. Time
  • VCO2 vs. VO2
  • VE vs. VO2
  • VE vs. VCO2
  • HR, VCO2 vs. VO2
  • %Fat

When the workload set on an ergometer is also recorded, the Metabolic Calculations Module can plot these additional parameters:

  • VE vs. Watts
  • HR, VO2/HR vs. Watts
  • VO2, VCO2 vs. Watts
  • VE/VO2, VE/VCO2 Vs. Watts
  • Resting Energy Expenditure (REE)

The Metabolic Calculations Module was enhanced considerably with the release of LabScribe V3 to serve our customers performing fitness assessment tests.  Here are some noteworthy changes:

  • It is now possible to setup and save a subject profile while performing a fitness assessment test.  During subsequent tests, the same subject profile can be loaded and data can be easily compared.  This feature provides a convenient and simple way to track progress over time.
  • An intuitive user interface has been created to setup and customize training zones for subjects based on % of maximum heart rate or within a specific heart rate range.

Detailed information about using the modules is in the LabScribe Manual

Brochure

Download brochure (.pdf)

Citations

Merritt, Kristen J., Caroline E. Raburn, and Jesse C. Dean. “Adaptation of the preferred human bouncing pattern toward the metabolically optimal frequency.” Journal of neurophysiology 107.8 (2012): 2244-2249.
Bowtell, Joanna L., et al. “Acute physiological and performance responses to repeated sprints in varying degrees of hypoxia.Journal of Science and Medicine in Sport 17.4 (2014): 399-403.
Gómez, Jaime Vásquez, et al. “DESEMPEÑO EN UNA PRUEBA DE CAMINATA Y UNA PRUEBA INCREMENTAL EN ESTUDIANTES DE EDUCACIÓN FÍSICA: FRECUENCIA CARDÍACA DE RECUPERACIÓN Y VO2 MÁX.” Revista Ciencias de la Actividad Física UCM. N 16.2 (2015): 57-69.

  • Research Grade Metabolic Cart

    MC-TA-200V

  • Metabolic Cart

    MC-Peak

  • Research Grade Metabolic Cart

    MC-PeakPro