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Fig. 5 | The Journal of Physiological Sciences

Fig. 5

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

Fig. 5

The effect of cessation time of smoking on \( \dot{V}_{\text{CO}} \) in two subjects. In the first measurement, the exercise testing started at least 2 h from the last smoking (S1-1 and S2-1). However, in the second measurement on different days, the exercise started immediately after smoking (S1-2 and S2-2), respectively. Note that \( \dot{V}_{\text{CO}} \) increased remarkably compared with the first measurement

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