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Table 3 Difference between CPET2 and CPET1 in patients and controls&

From: Patients with chronic fatigue syndrome performed worse than controls in a controlled repeated exercise study despite a normal oxidative phosphorylation capacity

  CPET2 minus CPET1
  Patients n = 15 Controls n = 15
FVC (L) 0.01 ± 0.21 0.05 ± 0.18
FEV 1 (L) 0.00 ± 0.32 0.07 ± 0.17
Rest
Heart rate (beats/min) 1.33 ± 6.29 0.20 ± 6.24
O2 pulse (mL/beat) -0.17 ± 0.41 0.01 ± 0.47
V'O2/kg [mL/(min.kg)] -0.07 ± 0.70 -0.07 ± 0.80
Anaerobic Threshold
WR (Watt) -4.40 ± 9.66 7.67 ± 19.50*
Heart rate (beats/min) 2.60 ± 7.79 4.60 ± 10.16
O2 pulse (ml/beat) -0.67 ± 0.93 0.25 ± 1.09*
V'O2/kg [mL/(min.kg)] -0.87 ± 1.77 1.07 ± 2.63*
V'E/V'CO2 -0.21 ± 2.05 -13.8 ± 50.1
Maximal exercise
WR (Watt) -6.3 ± 11.5 11.1 ± 18.3**
Heart rate (beats/min) -3.3 ± 8.6 11.9 ± 41.6
O2 pulse (mL/beat) -0.37 ± 0.70 -4.6 ± 15.0
V'O2/kg [mL/(min.kg)] -1.33 ± 1.68 0.73 ± 1.39**
  1. & Data are presented as mean ± SD
  2. Differences between patients and controls evaluated by multivariate ANOVA: *: P < 0.05; ** P < 0.01