[Retracted] Effects of Caffeine Intake on Cardiopulmonary Variables and QT Interval after a Moderate-Intensity Aerobic Exercise in Healthy Adults: A Randomized Controlled Trial

Table 4

The change value of HR, RR, BP, VO₂, VCO₂, and QTc in caffeine over time ().

		HR	RR	SBP	DBP	VO2	VCO2	QTc
I	0 min							^a
	5 min	^a				^a		^a
	10 min							^a
	15 min	^a						^a,b
		714.898	71.189	53.178	3.806	408.393	542.635	28.850
II	0 min							^a,c
	5 min	^a				^a		^a
	10 min							^a
	15 min	^a						^a
		676.194	103.288	32.770	3.838	332.713	284.947	19.370
III	0 min
	5 min
	10 min
	15 min							^a
		656.448	79.231	35.935	8.763	183.377	159.974	32.186
	0 min	2.044	0.250	0.830	0.040	0.846	0.929	8.766
	5 min	4.410	0.467	0.192	0.140	4.440	2.148	4.466
	10 min	3.187	1.950	0.221	0.173	3.242	0.976	3.450
	15 min	4.457	1.487	0.740	1.848	2.496	0.885	5.647

I: exercise without caffeine; II: caffeine beverage intake before exercise; III: caffeine beverage intake immediately after exercise (, ); HR: heart rate; RR: respiratory rate; SBP: systolic blood pressure; DBP: diastolic blood pressure; VCO₂: oxygen consumption; VCO₂: carbon dioxide emission; QTc: corrected QT interval. ^aDifference between I and II, ^bdifference between I and III, and ^cdifference between II and III.