Table 3.
2 Hz |
5 Hz |
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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.