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Fig. 4 | The Journal of Physiological Sciences

Fig. 4

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

Fig. 4

Relationship between \( \dot{V}_{{{\text{O}}_{ 2} }} \) and \( \dot{V}_{\text{CO}} \) (upper panel) and between \( \dot{V}_{\text{E}} \) and \( \dot{V}_{\text{CO}} \) (lower panel) obtained during ramp exercise period on 8 smokers. Note that high correlations were observed between \( \dot{V}_{{{\text{O}}_{ 2} }} \) and \( \dot{V}_{\text{CO}} \) (r = 0.89–0.99), and between \( \dot{V}_{\text{E}} \) and \( \dot{V}_{\text{CO}} \) (r = 0.98–0.99), respectively. Also note that the scale of \( \dot{V}_{\text{CO}} \) was ten times larger than that of in Fig. 3

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