Effect of ramp bicycle exercise on exhaled carbon monoxide in humans

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

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)

“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 \( {\text{E}}\dot{V}_{{{\text{O}}_{2} }} - {\text{E}}\dot{V}_{{{\text{CO}}}} {\text{ and E}}\dot{V}_{{\text{E}}} - {\text{E}}\dot{V}_{{{\text{CO}}}} \)

ISSN: 1880-6562