BMC Medical Research Methodology

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
$\dot{V} O_{2}$ (ml /min · kg)	36.0 ± 10.1	28.7 ± 8.3	33.4 ± 8.7
HR (bpm)	193 ± 9	185 ± 15	189 ± 11
${\dot{V}}_{E}$ (l/min)	77.8 ± 22.3	77.8 ± 18.1	77.6 ± 24.0

Abbreviations: $\dot{V} O_{2}$ oxygen uptake, ${\dot{V}}_{E}$ minute volume, FEV1 forced expiratory volume, HR heart rate.

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ISSN: 1471-2288

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