Table 3—

Z-scores for heart rate (HR) and oxygen consumption (V'O2) at the different exercise stages for the children with cystic fibrosis (CF) and non-CF bronchiectasis

Exercise stage of measured variableCFBronchiectasis
zHR
 Rest1.15* (0.67–1.63)0.90* (0.46–1.34)
 Stage 11.41* (0.84–1.98)1.29* (0.67–1.90)
 Stage 20.92* (0.55–1.28)1.12* (0.53–1.72)
 Stage 30.86* (0.41–1.32)0.91* (0.18–1.64)
zV'O2
 Rest0.48* (0.12–0.85)0.59 (−0.13–1.33)
 Stage 10.51* (0.06–0.96)0.42 (−0.15–0.99)
 Stage 21.35* (0.56–2.14)0.86* (0.23–1.48)
 Stage 31.40* (0.60–2.20)0.95* (0.02–1.87)
  • Data are presented as median (range)

  • There was no significant difference between the two disease groups for either parameter at rest or at any exercise stage

  • *: p<0.05 for that measurement compared to corresponding value for the normal controls