Expiratory Flow Limitation at Different Exercise Intensities in Coronary Artery Disease

Table 4

Constant workload exercise test variables (moderate and high intensity) of groups.

	RMI (n = 8)		LMI (n = 12)		CAD (n = 9)		CG (n = 12)
	Moderate	High	Moderate	High	Moderate	High	Moderate	High
Speed, km/h	5.2 ± 0.8^+	5.8 ± 0.4^+#	6.0 ± 0.6	6.2 ± 0.5	6.2 ± 0.4	6.4 ± 0.3	6.4 ± 0.4	6.7 ± 0.3^#
Inclination, %	0.1 ± 0.2	7.6 ± 2.7^#	0.5 ± 0.9	10.1 ± 3.6^#	0.9 ± 2.1	8.8 ± 5.2^#	0.8 ± 1.7	11.1 ± 3.7^#
VE, L.min^−1	30.4 ± 5.4	54.1 ± 10.1^#	38.3 ± 11.1	63.1 ± 19.9^#	39.6 ± 9.5	65.8 ± 14.3^#	36.6 ± 4.4	63.9 ± 12.2^#
VO2, mL·kg^−1·min^−1	13.4 ± 2^+	20.2 ± 3.3^#	14 ± 3^+	22.3 ± 5^#	18.3 ± 4.5	24.4 ± 5.6^#	17.3 ± 3.1	28.6 ± 4.6^#
PETCO2 (mL·kg^−1·min^−1)	38.4 ± 2.6^+	37.5 ± 5.3	38.5 ± 1.4^+	36.7 ± 4.6	44.1 ± 5.6	38.1 ± 4.7^#	42.1 ± 2.2	38.7 ± 2.9^#
VE/VCO2	30.1 ± 0.8	33.2 ± 4.6	31.0 ± 2.9^+	34.2 ± 5.0	27.6 ± 1.9	29.7 ± 4.4	27.3 ± 1.8	30.2 ± 2.6^#
HR, bpm	90 ± 9	112 ± 13^+#	101 ± 16	127 ± 19^#	115 ± 21	147 ± 18^#	106 ± 14	139 ± 13^#
IC, L	3.5 ± 0.5	3.6 ± 0.5	3.2 ± 0.5	3.3 ± 0.7	3.3 ± 0.2	3.3 ± 0.4	3.3 ± 0.7	3.3 ± 0.6

Data are presented as mean ± SD. RMI, recent myocardial infarction group; LMI, late myocardial infarction group; CAD, stable coronary artery disease group; CG, control group; VE, minute ventilation; VO₂, oxygen uptake; P_ETCO₂, partial pressure of end-tidal carbon dioxide; VCO₂, carbon dioxide production; HR, heart rate; IC, inspiratory capacity. Significant difference in relation to CG in the same situation. ⁺Significant difference in relation to CAD in the same situation; ^#Significant difference in relation to moderate intensity (). Two-way ANOVA (Tukey post hoc) was used.