Table 2

Acute effects of oxygen on exercise tolerance and dyspnoea at baseline (data presented as mean values with 95% confidence intervals, n = 25)

Air cylinder Oxygen cylinder Difference (95% CI) p value
SWT (m)149.1176.427.3 (14.7 to 39.8)<0.001
Borg score4.203.52–0.68 (–1.05 to –0.31)<0.001
  • p value represents difference between oxygen and placebo air walk.

  • SWT = Shuttle Walk Test.