Skip to main content
. 2014 Oct 15;592(Pt 21):4789–4802. doi: 10.1113/jphysiol.2014.278846

Table 3.

Haemodynamic responses to sympathetic stimulation at rest and during muscle contraction.

2 Hz
5 Hz
Muscle contractile state Group Drug condition FBF (ml min−1) FVC (ml min−1 mmHg−1) FBF (ml min−1) FVC (ml min−1 mmHg−1)
Rest Sedentary Control −0.6 ± 0.2 −0.008 ± 0.002 −0.8 ± 0.3 −0.011 ± 0.003
SMTC −0.8 ± 0.3 −0.008 ± 0.002 −1.1 ± 0.4 −0.012 ± 0.003
SMTC + l-NAME −0.9 ± 0.3 −0.009 ± 0.003 −1.1 ± 0.4 −0.011 ± 0.004
Exercise trained Control −0.9 ± 1.0 −0.010 ± 0.001 −1.3 ± 0.2 −0.015 ± 0.003
SMTC −1.0 ± 0.3 −0.010 ± 0.002 −1.6 ± 0.4 −0.015 ± 0.004
SMTC + l-NAME −1.2 ± 0.4 −0.009 ± 0.002 −1.5 ± 0.6 −0.012 ± 0.004
Contraction Sedentary Control −0.5 ± 0.6 −0.006 ± 0.005 −1.1 ± 1.2 −0.016 ± 0.008
SMTC −1.1 ± 0.8§ −0.014 ± 0.004§ −1.7 ± 1.3§ −0.024 ± 0.007*§
SMTC + l-NAME −1.8 ± 1.0*§ −0.018 ± 0.005§ −2.4 ± 1.3*§ −0.026 ± 0.007*§
Exercise trained Control −0.7 ± 0.4 −0.010 ± 0.004 −1.2 ± 0.6 −0.018 ± 0.004
SMTC −2.4 ± 0.6*§ −0.025 ± 0.005*§ −3.3 ± 0.6§ −0.036 ± 0.006*§
SMTC + l-NAME −2.7 ± 0.8*§ −0.024 ± 0.006*§ −4.0 ± 1.0§ −0.036 ± 0.006*§

Values are means ± s.d. Abbreviations: FBF, femoral blood flow; FVC, femoral vascular conductance; HR, heart rate; MAP, mean arterial blood pressure; l-NAME, Nω-nitro-l-arginine methyl ester; SMTC, S-methyl-l-thiocitrulline. *Statistically significant difference from control conditions within the specified contractile state. Statistically significant difference from SMTC condition within the specified contractile state. Statistically significant difference between all drug conditions within the specified contractile state. §Statistically significant difference between groups within specified drug condition and contractile state. P < 0.05 was considered statistically significant.