REFERENCES
- Oga T, Nishimura K, Tsukino M, Hajiro T, Ikeda A, Izumi T. The effects of oxitropium bromide on exercise performance in patients with stable chronic obstructive pulmonary disease. A comparison of three different exercise tests. Am J Respir Crit Care Med 2000; 161: 1897–1901
- Whipp B J, Ward S A. Quantifying intervention-related improvements in exercise tolerance. Eur Respir J 2009; 33: 1254–1260
- Casaburi R. Factors determining constant work rate exercise tolerance in COPD and their role in dictating the minimal clinically important difference in response to interventions. COPD 2005; 2: 131–136
- Malaguti C, Nery L E, Dal Corso S, et al. Alternative strategies for exercise critical power estimation in patients with COPD. Eur J Appl Physiol 2006; 96: 59–65
- Casaburi R, Porszasz J, Burns M R, Carithers E R, Chang R S, Cooper C B. Physiologic benefits of exercise training in rehabilitation of patients with severe chronic obstructive pulmonary disease. Am J Respir Crit Care Med 1997; 155: 1541–1551
- Porszasz J, Emtner M, Goto S, Somfay A, Whipp B J, Casaburi R. Exercise training decreases ventilatory requirements and exercise-induced hyperinflation at submaximal intensities in patients with COPD. Chest 2005; 128: 2025–2034
- Puente-Maestu L, Villar F, de Miguel J, Stringer W W, Sanz P, Sanz M L, Garcia de Pedro J, Martinez-Abad Y. Clinical relevance of constant power exercise duration changes in COPD. Eur Respir J 2009; 34: 340–345
- Debigare R, Maltais F, Mallet M, Casaburi R, Le Blanc P. Influence of work rate incremental rate on the exercise responses in patients with COPD. Med Sci Sports Exerc 2000; 32: 1365–1368
- Neder J A, Jones P W, Nery L E, Whipp B J. Determinants of the exercise endurance capacity in patients with chronic obstructive pulmonary disease. The power-duration relationship. Am J Respir Crit Care Med 2000; 162: 497–504
- Laviolette L, O'Donnell D E, Webb K A, Hamilton A L, Kesten S, Maltais F. Performance during constant work rate cycling exercise in women with COPD and hyperinflation. COPD, (in press)