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. 2011 Jan 4;589(Pt 5):1209–1220. doi: 10.1113/jphysiol.2010.203026

Table 4.

Haemodynamic and sympathetic responses to LBNP at rest and during handgrip in hypertensive subjects treated with an AT1 receptor blocker

Rest Rest + LBNP Handgrip Handgrip + LBNP
No drug
MAP (mmHg) 106 ± 4 103 ± 4 112 ± 4* 112 ± 5*
HR (beats min−1) 63 ± 2 65 ± 3 72 ± 1* 74 ± 2*
SNA (bursts min−1) 34 ± 5 47 ± 2* 41 ± 5 49 ± 3*
Δ SNA (% total activity) 0 ± 0 62 ± 14* 44 ± 15* 109 ± 17 *
FBF (ml min−1 113 ± 15 89 ± 10* 627 ± 69* 551 ± 63*
FVC (units) 109 ± 16 88 ± 12* 570 ± 73* 498 ± 63*
Irbesartan
MAP (mmHg) 97 ± 4 97 ± 5 102 ± 5 104 ± 5*
HR (beats min−1) 68 ± 3 72 ± 4 74 ± 3* 80 ± 4*
SNA (bursts min−1) 46 ± 4 58 ± 3* 53 ± 4* 61 ± 5*
Δ SNA (% total activity) 0 ± 0 46 ± 14* 44 ± 21* 102 ± 16*
FBF (ml min−1) 122 ± 14 97 ± 13* 631 ± 105* 631 ± 101*
FVC (units) 129 ± 19 102 ± 16* 626 ± 99* 618 ± 98*
Washout
MAP (mmHg) 105 ± 3 102 ± 3 112 ± 4 112 ± 4
HR (beats min−1) 65 ± 2 67 ± 3 70 ± 2* 72 ± 4*
SNA (bursts min−1) 32 ± 4 49 ± 6* 40 ± 5* 46 ± 7*
Δ SNA (% total activity) 0 ± 0 74 ± 25* 46 ± 13* 174 ± 44*
FBF (ml min−1) 166 ± 30 136 ± 16* 560 ± 131* 511 ± 124*
FVC (units) 158 ± 35 123 ± 20* 496 ± 111* 452 ± 105*
*

P < 0.05 vs. rest;

P < 0.05 vs. handgrip

P < 0.05 vs. no drug,

P < 0.05 vs. washout; n= 7 subjects.