PMID: 20647644Jul 22, 2010Paper

Using the oxygen-cost diagram in ramp-slope selection for dyspneic patients

Internal Medicine
Ming-Lung ChuangI-Feng Lin

Abstract

Maximal incremental exercise testing should be completed within 8-12 minutes. The ramp-slope influences the exercise duration. Oxygen-cost diagram (OCD) is a scoring scale for the capability of daily activity performed and therefore can be used to estimate the ramp-slope. The OCD-algorithm and the reported-algorithm were used prospectively in random order for selecting optimal ramp-slope: Ramp-slope(OCD)=Score(OCD)xweight in kg/40 for men and weight/50 for women and Ramp-slope(reported)=(Predicted V(O2peak)-V(O2unloaded))/100. Fifty-three dyspneic patients and 16 normal controls were enrolled to perform a ramp-pattern exercise. Fourteen patients not reaching maximum exercise levels were excluded. The exercise capacity, exercise time, and success rate of loaded exercise between 8 and 12 minutes were measured. Comparing the reported-algorithm to the OCD-algorithm in normal controls, the only difference was that the ramp-slope was higher in males; in patients, the ramp-slope was higher in males, the exercise time shorter and the success rate lower (8.6+/-3.3 vs. 9.4+/-2.1 min, 61.5% vs. 84.6%, both p<0.05); in obese patients, the ramp-slope was lower and the exercise time longer. OCD score can predict the ramp-slope selection for ...Continue Reading

References

Jan 1, 1992·Medicine and Science in Sports and Exercise·C C DunbarF L Goss
Mar 1, 1988·Chest·D A Mahler, C K Wells
Jan 1, 1988·European Journal of Applied Physiology and Occupational Physiology·J E HansenK Wasserman
Jan 1, 1985·Journal of Chronic Diseases·G H GuyattS O Pugsley
Nov 1, 1983·Journal of Applied Physiology: Respiratory, Environmental and Exercise Physiology·M J BuchfuhrerB J Whipp
Oct 22, 1982·JAMA : the Journal of the American Medical Association·K Wasserman
Jul 1, 1997·Journal of Applied Physiology·D GallagherS B Heymsfield
Oct 14, 1998·American Journal of Respiratory and Critical Care Medicine·T HajiroT Izumi
Sep 14, 1999·Journal of Applied Physiology·M L ChuangK Wasserman
Aug 19, 2000·Medicine and Science in Sports and Exercise·R DebigaréP LeBlanc
Jun 19, 2001·Journal of Nippon Medical School = Nippon Ika Daigaku Zasshi·K YamadaS Kudoh
Jan 14, 2003·American Journal of Respiratory and Critical Care Medicine·UNKNOWN American Thoracic Society, UNKNOWN American College of Chest Physicians
Feb 5, 2005·Respirology : Official Journal of the Asian Pacific Society of Respirology·UNKNOWN Asia Pacific COPD Roundtable Group
Sep 22, 2006·Journal of Evaluation in Clinical Practice·Sevgi Ozalevli, Eyup S Ucan
Jan 2, 2007·The European Respiratory Journal·UNKNOWN ERS Task ForceB J Whipp
Mar 17, 2009·Journal of Palliative Medicine·Suresh K ReddyEduardo Bruera
Jul 31, 2009·Annals of Thoracic Medicine·S K ChhabraM Z Khuma
Apr 23, 2010·International Journal of Pediatric Otorhinolaryngology·Gerhard Grevers, UNKNOWN First International Roundtable ENT Meeting Group

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Citations

Apr 26, 2012·International Journal of Obesity : Journal of the International Association for the Study of Obesity·Y GerlachA M Coates

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