Int J Sports Med 2001; 22(4): 291-294
DOI: 10.1055/s-2001-14342
Training and Testing
© Georg Thieme Verlag Stuttgart · New York

Validation of a Computerized Metabolic Measurement System (Oxycon-Pro®) During Low and High Intensity Exercise[1]

G. J. W. M. Rietjens1 , H. Kuipers1 , A. D. M. Kester2 , H. A. Keizer1
  • 1 Department of Movement Sciences, Maastricht University, Maastricht, The Netherlands
  • 2 Department of Methodology and Statistics, Maastricht University, Maastricht, The Netherlands
Further Information

Publication History

Publication Date:
31 December 2001 (online)

The aim of the study was to validate a new, fast metabolic measurement system (the Oxycon-Pro®) during low and high exercise intensities against the Douglas bag method. For this purpose twelve highly trained subjects performed an incremental cycle ergometer test. In the third minute of each exercise step simultaneous measurements of the Douglas bag and the Oxycon-Pro® were performed. No significant differences between the Oxycon-Pro® and the Douglas bag measurements for minute ventilation (VE), oxygen uptake (V˙O2) and carbon dioxide expiration (V˙CO2) were found. Bland and Altman analysis of validity demonstrated minimal bias and low standard deviations. In conclusion, the results show that the Oxycon-Pro® is a valid apparatus for determination of minute ventilation (VE), oxygen uptake (V˙O2) and carbon dioxide expiration (V˙CO2) during low as well as during maximal exercise intensities. Unlike with the Douglas bag method, this fast metabolic measurement system can be used for accurate and quick determination of ventilatory variables during exercise.

1 This study was supported by a grant from the Netherlands Olympic Committee.

References

  • 1 Lucia A, Fleck S J, Gotshall R W, Kearney J T. Validity and reliability of the Cosmed K2 instrument.  Int J Sports Med. 1993;  14 380-386
  • 2 Versteeg P G, Kippersluis G J. Automated systems for measurement of oxygen uptake during exercise testing.  .  Int J Sports Med. 1989;  10 107-112
  • 3 King G A, McLaughlin J E, Howley E T, Bassett D R Jr, Ainsworth B E. Validation of Aerosport KB1-C portable metabolic system.  Int J Sports Med. 1999;  20 304-308
  • 4 Beaver W L, Wasserman K, Whipp B J. On-line computer analysis and breath-by-breath graphical display of exercise function tests.  .  J Appl Physiol. 1973;  34 128-132
  • 5 Bland J M, Altman D G. Statistical methods for assessing agreement between two methods of clinical measurement.  .  Lancet. 1986;  1 307-310
  • 6 Altman D G. Some common problems in medical research. In: Practical statistics for medical research. London; Chapman and Hall 1991: 396-404
  • 7 Nevill A M, Atkinson G. Assessing agreement between measurements recorded on a ratio scale in sports medicine and sports science.  Br J Sports Med. 1997;  31 314-318

1 This study was supported by a grant from the Netherlands Olympic Committee.

G. RietjensMsc 

Dept. of Movement Sciences
Maastricht University

P. O. 616
6200 MD Maastricht
The Netherlands


Phone: Phone:+31 (433) 881318

Fax: Fax:+31 (433) 670972

Email: E-mail:Gerard.Rietjens@bw.unimaas.nl

    >