Table 3.

Group average R² values for efferent SNA/AP predicted by models of the neural and peripheral arcs vs. measured SNA/AP

	Neural Arc
	Linear	2nd-Order Volterra	2nd-Order Uryson	Peripheral Arc (Linear)
SHR120
Training data	0.65 ± 0.03	0.76 ± 0.02*	0.73 ± 0.02*	0.82 ± 0.04
Testing data	0.65 ± 0.03	0.71 ± 0.03*	0.70 ± 0.03*	0.83 ± 0.03
SHR160
Training data	0.82 ± 0.01	0.85 ± 0.01*	0.84 ± 0.01*	0.83 ± 0.07
Testing data	0.82 ± 0.01	0.83 ± 0.01	0.83 ± 0.01*	0.78 ± 0.10

Values are means ± SE. SNA, sympathetic nerve activity.

^*Statistical significance for paired t-test comparison with corresponding linear model after Holm's correction for 3 comparisons.