fitnessASSIST

COSMED is the only manufacturer having more than 20 years of experience in mobile and ambulatory metabolic testing. The K4 b² has been designed to be accurate and reliable in any condition. 

The fast O2 and CO2 analysers are maintained at a constant temperature. Sampling flow and pressure are continuously monitored. A barometer along with a temperature and pressure sensor allow instantaneous correction for any change in the environmental conditions. 

The K4b2 is the first COSMED portable system for cardiopulmonary gas exchange analysis on true breath-by-breath basis. Its technology and dimensions allow it to measure physiological response to exercise in the field without limitation. 

With more than 20 years of experience in mobile metabolic testing, the K4b² has been designed by COSMED to be accurate and reliable in any conditions with fast O2 and CO2 analyzers and continuous monitoring of temperature, sampling flow and pressure. K4 b2 has been validated, used and mentioned in more than 400 publications worldwide in the most important scientific journals.

Why limit your studies to the length of the cable?

• Pulmonary Gas Exchange (VO2, VCO2)

• Breath by Breath Technology

• Telemetry Data Transmission up to 800m

• Indirect Calorimetry

• Integrated GPS System

• Integrated Oxygen Saturation (SpO2)

• Integrated 12-lead Stress Testing ECG

The K4b² is provided with all necessary hardware for field testing: Total weight of only 800 grams, Integrated LCD for calibrating and showing data during field testing without the need of a PC. Powerful rechargeable batteries that can be exchanged during the test. 

A barometer along with a temperature and pressure sensor allow instantaneous correction for any change in environmental conditions. A GPS module measures speed, distance, altitude and geographical position of a subject running in an open field together with gas exchange data.

Manage data completely

• Patient Database management.
• Automatic and manual detection of anaerobic and RC threshold according to the modified V-slope method or user defined plots.
• Control of any ergometer provided with a RS-232 interface.
• Real time visualization of the O2 and CO2 waveforms during the test.
• Advanced data elaboration (filtering, smoothing, averaging).
• O2 Kinetics tool (O2 deficit, O2 debt, time constant).
• Exercise Flow-Volume loops.
• Custom parameters and predicted equations.
• Custom fittings (linear and exponential).
• Speed and distance marking for easy calculation of O2 cost of locomotion (Gait Lab applications).
• Non Invasive Cardiac Output during breath by breath analysis.
• Integrated GPS and Enjoy Field Testing!!
• By connecting the GPS module you can measure speed, distance, altitude and geographical position of a subject running in an open field together with gas exchange data.

Key Features:

• Pulmonary Gas Exchange (VO2, VCO2)
• Breath by Breath Technology
• Telemetry Data Transmission up to 800m
• Indirect Calorimetry
• Integrated GPS System
• Integrated Oxygen Saturation (SpO2)
• Integrated 12-lead Stress Testing ECG

Box Includes:

• K4 b2 TX Module
• K4 b2 RX Module
• GPS Module
• Rechargeable Batteries
• Charge unit
• 2 flowmeters
• HR belt
• Faces masks (Adult S, M, L)
• Adult headcap
• Adult harness
• Gas Calibration unit
• PC software
• Aluminium Carrying case
• RS-232 cable
• Antenna

Technical Specification:

• Memory: 16,000 breaths
• Display: LCD - 2 lines x 16 characters / 6 keys keyboard
• Heart Rate Monitor: Wireless double electrode
• Serial port: RS 232
• Environmental Thermometer: 0-50°C / Barometer: 53-106 Kpa
• Dimensions (mm/in): 170 x 55 x 100 / 6.7 x 2.2 x 3.9
• Weight (g/lb): Unit: 475 / 1.04 GPS Module: 80 / 0.17