Table 3.

Muscle sympathetic nerve activity responses to a mixed meal

	Time					ANOVA, P value
	Baseline	30 min	60 min	90 min	120 min	Group	Time	Interaction
Average fit
MSNA burst frequency, bursts/min	11 ± 2	18 ± 2	21 ± 2	20 ± 3	20 ± 2	0.199	<0.001	0.049
MSNA total activity, AU/min	293 ± 52	1096 ± 191	1261 ± 151	1138 ± 171	1124 ± 132	0.009	<0.001	<0.001
Δ, AU/min	0	804 ± 175	969 ± 149	845 ± 158	831 ± 139	0.004	<0.001	<0.001
%Δ	0	335 ± 78	447 ± 95	353 ± 75	408 ± 100	0.393	<0.001	0.274
MSNA burst strength, AU	25 ± 2	62 ± 11	60 ± 0	54 ± 2	59 ± 4	0.014	<0.001	0.017
Δ, AU	0	37 ± 11	35 ± 3	29 ± 3	34 ± 4	0.044	<0.001	0.017
%Δ	0	145 ± 40	139 ± 14	118 ± 13	132 ± 14	0.246	<0.001	0.049
High fit
MSNA burst frequency, bursts/min	12 ± 2	23 ± 1	24 ± 1	27 ± 2*	26 ± 3*
MSNA total activity, AU/min	346 ± 49	1451 ± 144	1699 ± 155	2216 ± 250*	2238 ± 350*
Δ, AU/min	0	1105 ± 143	1353 ± 128	1870 ± 220*	1892 ± 312*
%Δ	0	364 ± 68	426 ± 57	578 ± 94	556 ± 80
MSNA burst strength, AU	29 ± 1	62 ± 4	70 ± 3	81 ± 4*	83 ± 7*
Δ, AU	0	33 ± 4	42 ± 3	53 ± 4*	55 ± 7*
%Δ	0	117 ± 15	147 ± 13	186 ± 19*	195 ± 29

Values are means ± SE. Muscle sympathetic nerve activity (MSNA) total activity and burst strength are only included for completeness (see text for details). AU, arbitrary units.

^*P < 0.05 vs. average fit.