Table 2.

Group average powers of the beat-to-beat fluctuations in the hemodynamic variables before and after HF

Hemodynamic Variable Power	Control	HF
ABP, mmHg2
Low frequency	7.51 ± 1.11	2.86 ± 0.46*
High frequency	4.35 ± 2.63	1.16 ± 0.48
Total	22.59 ± 4.58	10.33 ± 2.31
HR, (beats/min)2
Low frequency	25.56 ± 3.48	20.96 ± 8.49
High frequency	64.93 ± 33.08	20.58 ± 11.68
Total	116.03 ± 36.80	65.62 ± 21.05
Emax, mmHg2/ml2
Low frequency	0.0080 ± 0.0025	0.0026 ± 0.0004
High frequency	0.0041 ± 0.0020	0.0024 ± 0.0008
Total	0.0290 ± 0.0093	0.0115 ± 0.0037

Values are means ± SE. Low frequency is 0.04–0.15 Hz, and high frequency is 0.15–0.50 Hz.

^*P < 0.05.