Table 1.

Cardiovascular parameters before, during, and after HF-ES

	Mean Arterial Pressure, mmHg				Heart Rate, beats/min
Stimulation	2-wk C4	2-wk T2	12-wk C4	12-wk T2	2-wk C4	2-wk T2	12-wk C4	12-wk T2
Baseline	100 ± 9	101 ± 5	118 ± 13	96 ± 10	409 ± 5	416 ± 9	402 ± 10	401 ± 7
100 µA	101 ± 9	101 ± 5	117 ± 13	97 ± 10	407 ± 4	416 ± 9	401 ± 9	400 ± 8
Post 100 µA	101 ± 9	101 ± 5	116 ± 13	97 ± 10	406 ± 4	417 ± 9	400 ± 9	400 ± 8
500 µA	103 ± 9*	104 ± 4	120 ± 14*	104 ± 11	405 ± 4	417 ± 8	401 ± 9	402 ± 8
Post 500 µA	102 ± 10	103 ± 5	117 ± 13	97 ± 9	405 ± 4	417 ± 8	400 ± 9	400 ± 8
1,000 µA	106 ± 10*	108 ± 4*	123 ± 13*	106 ± 11*	406 ± 4	418 ± 8	403 ± 9	402 ± 9
Post 1,000 µA	102 ± 10	102 ± 6	118 ± 14	93 ± 10	406 ± 4	420 ± 7	400 ± 9	401 ± 9

Mean arterial blood pressure was significantly increased during 500- and 1,000-µA stimulation in rats receiving stimulation at C4 and during 1,000-µA stimulation in rats receiving stimulation at T2. Heart rate was significantly increased during 1,000-µA stimulation in rats receiving HF-ES to the C4 spinal cord at 12 wk postinjury. No other statistically significant changes in cardiovascular parameters were observed during or after stimulation.

^*P < 0.05, significantly different from baseline, 100 µA, post 100 µA, post 500 µA, and post 1,000 µA.

^#P < 0.05, significantly different from T2 stimulation (2-way repeated-measures ANOVA with Holm-Sidak post hoc tests for individual comparisons).