Table 1.

Resting and descriptive data

Variable	HFrEF Pretraining (n = 27)	HFrEF Posttraining (n = 27)	Healthy Subjects (n = 18)
Age, yr	65 ± 2	66 ± 2	57 ± 2†
Height, cm	171 ± 2	171 ± 2	172 ± 3
Body weight, kg	78.5 ± 3	80.7 ± 3	74 ± 4
BMI, kg/m2	26 ± 1	27 ± 1	25 ± 1
Heart rate, beats/min	63 ± 2	63 ± 2	64 ± 2
Systolic blood pressure, mmHg	111 ± 3	113 ± 3	115 ± 4
Diastolic blood pressure, mmHg	62 ± 1	63 ± 2	68 ± 2†
Augmentation index, %	27.4 ± 1.7	28.6 ± 2.0	16.7 ± 3.2†
Augmentation index at HR75, %	20.7 ± 1.8	23.6 ± 2.0	12.9 ± 2.3†
Skin blood flow, PU	7.4 ± 0.6	7.9 ± 0.5	8.4 ± 1.0
Cutaneous vascular conductance, PU/mmHg	9.6 ± 0.8	9.9 ± 0.5	10.3 ± 1.5
MSNA, bursts/min	52.6 ± 2.5	47.0 ± 2.6*	44.0 ± 2.0**
MSNA, bursts/100 heartbeats	83.7 ± 3.5	76.4 ± 4.5*	70.0 ± 3.6**
Peak work rate, W	96 ± 14	119 ± 15*	152 ± 18**
V̇o2peak, L/min	1.47 ± 0.1	1.69 ± 0.1*	2.3 ± 0.2†
V̇o2peak, mL·kg−1·min−1	18.3 ± 1.5	21.4 ± 1.7*	30.6 ± 2.2†
V̇o2peak, %predicted	76.8 ± 5.2	87.6 ± 5.3*	110.3 ± 6.5†

Values are means ± SE; n as shown except for muscle sympathetic nerve activity (MSNA; n = 18). BMI, body mass index; V̇o_2peak, peak oxygen uptake; HFrEF heart failure with reduced ejection fraction; HR75, heart rate of 75 beats/min; PU, perfusion units.

^*P < 0.05 pre- vs. posttraining HFrEF subjects;

^**P < 0.05 healthy controls vs. pretraining only;

^†P < 0.05 healthy controls vs. posttraining.