Fig. 4.

Summary data showing cardiovascular and sympathetic responses to activation of the mechanically sensitive component of the EPR in the 0.6% Pi (n = 13) and 1.2% Pi (n = 13) rats. The time course of changes in MAP, HR, RSNA, and muscle tension are shown in A, D, G, and J. The peak MAP, HR, RSNA, and muscle tension responses to muscle stretch are shown in B, E, H, and K. The integrated changes in MAP, HR, RSNA, and muscle tension, which are presented as area under the curve (AUC) over 30 s, are shown in C, F, I, and L. *P < 0.01 compared with 0.6% Pi.