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Table 1 Characteristics and maximal exercise data (means ± SD) of children who performed progressive bicycle exercise

From: Modeling trajectories of perceived leg exertion during maximal cycle ergometer exercise in children and adolescents

Characteristic Controls Cystic fibrosis Asthma
Boys:Girls (n) 17:15 15:6 14:12
Age (years) 12.4 ± 2.5 14.1 ± 2.3 12.0 ± 2.8
Height (cm) 155 ± 13 158 ± 11.6 150 ± 14
Weight (kg) 51.9 ± 15.9 48.7 ± 11.1 45.8 ± 16.4
FEV1 (% predicted) 103 ± 17 75 ± 18 96 ± 16
V ̇ O 2 (ml /min · kg) 36.0 ± 10.1 28.7 ± 8.3 33.4 ± 8.7
HR (bpm) 193 ± 9 185 ± 15 189 ± 11
V ̇ E (l/min) 77.8 ± 22.3 77.8 ± 18.1 77.6 ± 24.0
  1. Abbreviations: V ̇ O 2 oxygen uptake, V ̇ E minute volume, FEV1 forced expiratory volume, HR heart rate.