The effects of caffeine supplementation on measures of blood lactate, heart rate, oxygen uptake, respiratory exchange ratio, and minute ventilation in the final 30 s of a 30 minute recovery period following submaximal incremental exercise.

<p>Values are means ± standard deviations.</p

The effects of caffeine supplementation on resting measures of heart rate, oxygen uptake, respiratory exchange ratio, minute ventilation, and breathing frequency.

<p>Values are means ± standard deviations.</p