Test-retest reliability of a portable gas analysis system under free living conditions

A new validation paper has been published on the Indian Journal of Physiology and Pharmacology where was shown the test-retest reliability of the K4b2.

This study was undertaken to assess test-retest reliability of K4b2 in measuring VO2 and VCO2 during walking, stair climbing and descending stairs in a free living environment.

Twelve participants completed two self-selected comfortable paced walking tests and 20 participants completed two self-selected comfortable paced stair climbing and descending tests. VO2 and VCO2 were measured during the tests using K4b2.

The conclusions of the study prove that "test-retest measures using K4b2 are highly reliable when tests are performed in a similar manner. If similarity in testing conditions is maintained, K4b2 can be used to measure effect of interventions on VO2 and VCO2 in free living environment".

The article details are the following:

- Title: "Test-retest reliability of a portable gas analysis system under free living conditions"
- Authors: Sundar Kumar Veluswamy, Vasudeva Guddattu and Arun G. Maiya - Department of Physiotherapy, School of Allied Health Sciences, Manipal University, Manipal, Karnataka, India
- Published in:Indian J Physiol Pharmacol 2015; 59(1) : 117–120

The full article can be downloaded at the following link: click here

Test-retest #reliability of a portable gas analysis system under free living conditions #k4b2 http://t.co/MBF6CNqvl2 pic.twitter.com/DI72caAXkR

— COSMED (@cosmedhq) February 27, 2015