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Table 1 Physical characteristics and experimental results of 8 non-smokers

From: Effect of ramp bicycle exercise on exhaled carbon monoxide in humans

Subjects Age (years) Height (cm) Weight (kg) Ex-duration (min′s″) \( \dot{V}_{\text{CO}} ( 0{\kern 1pt} {\text{W)}} \) (μl/min) Peak \( \dot{V}_{\text{CO}} \) (μl/min) Correlation (r) \( ({\text{T}}\dot{V}_{{{\text{O}}_{{\text{2}}} }} - {\text{T}}\dot{V}_{{{\text{CO}}}}) \) Correlation (r) \( ({\text{T}}\dot{V}_{\text{E}} - {\text{T}}\dot{V}_{\text{CO}} ) \) Slope coeff. \( ({\text{E}}\dot{V}_{{{\text{O}}_{ 2} }} - {\text{E}}\dot{V}_{\text{CO}} ) \) Slope coeff. \( ( {\text{E}}\dot{V}_{\text{E}} - {\text{E}}\dot{V}_{\text{CO}} ) \)
N1 46 177 80 13′00″ 13.3 38.4 0.88 0.95 0.013 0.420
N2 22 166 55 10′30″ 16.1 38.6 0.93 0.96 0.019 0.399
N3 21 173 70 11′00″ 12.1 34.9 0.88 0.96 0.017 0.545
N4 21 174 60 12′30″ 18.1 26.7 0.79 0.92 0.006 0.317
N5 23 168 59 14′30″ 13.7 28.9 0.92 0.94 0.010 0.305
N6 21 170 58 15′30″ 12.4 35.2 0.95 0.90 0.008 0.193
N7 22 184 61 14′30″ 14.5 37.7 0.93 0.97 0.013 0.546
N8 22 174 73 13′00″ 10.3 26.0 0.94 0.96 0.010 0.298
Mean (±SD) 24.8 (8.6) 173.3 (5.6) 64.5 (8.8) 13′04″ (1′42″) 13.8 (2.4) 33.3 (5.3) 0.90 (0.05) 0.95 (0.02) 0.012 (0.004) 0.378 (0.124)
  1. “Ex-duration” indicates the duration of ramp exercise. “Correlation (r)” indicates the correlation coefficient between \( \dot{V}_{{{\text{O}}_{ 2} }} \) and \( \dot{V}_{\text{CO}} \), and between \( \dot{V}_{\text{E}} \) and \( \dot{V}_{\text{CO}} \) in the whole period of measurements from rest to recovery as titled \( {\text{T}}\dot{V}_{{{\text{O}}_{{\text{2}}} }} - {\text{T}}\dot{V}_{{{\text{CO}}}} \) and \( {\text{T}}\dot{V}_{\text{E}} - {\text{T}}\dot{V}_{\text{CO}} \). “Slope coeff” indicates the slope coefficient in the regression equation between \( \dot{V}_{{{\text{O}}_{ 2} }} \) and \( \dot{V}_{\text{CO}} \), and between \( \dot{V}_{\text{E}} \) and \( \dot{V}_{\text{CO}} \) for the data set obtained during ramp exercise period as shown \( {\text{E}}\dot{V}_{{{\text{O}}_{2} }} - {\text{E}}\dot{V}_{{{\text{CO}}}} {\text{ and E}}\dot{V}_{{\text{E}}} - {\text{E}}\dot{V}_{{{\text{CO}}}} \)