Table 2. Hemodynamic and autonomic variables measured pre- and post-exercise in the submaximal and maximal walking sessions.

	Submaximal		Maximal
	Pre	Post	Pre	Post	p session	p moment	p interaction
Systemic hemodynamics (N = 30)
Systolic BP (mmHg)	132 ± 16	125 ± 15*#	134 ± 13	138 ± 17*	0.01	0.18	0.01
Diastolic BP (mmHg)	77 ± 9	76 ± 8#	78 ± 8	83 ± 9*	0.01	0.01	0.01
Mean BP (mmHg)	95 ± 10	92 ± 9*#	96 ± 9	101 ± 10*	0.01	0.05	0.01
HR (bpm)	64 ± 9#	67 ± 9*#	68 ± 9	71 ± 10*	0.01	0.01	0.70
RPP (bpm* mmHg)	8466 ± 1466#	8308 ± 1433#	9010 ± 1394	9762 ± 1671*	0.01	0.01	0.01
Autonomic modulation (n=22)
LF (nu)	56 ± 22	64 ± 20*	51 ± 18	60 ± 21*	0.12	0.05	0.75
HF (nu)	40 ± 21	31 ± 19*	44 ± 17	34 ± 19*	0.19	0.02	0.88
LF/HF ratio	0.2 ± 0.5	0.4 ± 0.4*	0.1 ± 0.4	0.3 ± 0.5*	0.11	0.04	0.74
Local hemodynamics (n = 21)
Forearm BF	1.42 ± 0.63	1.68 ± 0.68*	1.41 ± 0.59	1.65 ± 0.67*	0.70	0.01	0.59
Calf BF	12.0 ± 7.1	13.7 ± 7.0*	12.2 ± 7.8	14.4 ± 8.8*	0.11	0.01	0.57
Forearm VR	80.9 ± 34.8	67.2 ± 30.0*	83.9 ± 40.6	73.6 ± 34.1*	0.18	0.01	0.14
Calf VR	56.8 ± 30.2	40.4 ± 19.8*	63.9 ± 29.5	52.4 ± 26.5*	0.02	0.01	0.52
Forearm AUCBF	1085 ± 507	1299 ± 609	1294 ± 676	1218 ± 476	0.66	0.38	0.50
Calf AUCBF	1081 ± 606	1152 ± 603	999 ± 467	1270 ± 825	0.89	0.13	0.20

Data are mean ± standard deviation. AUC: area under the curve; BF: blood flow; BP: blood pressure; HF: high frequency; HR: heart rate; LF: low frequency; nu: normalized units; RPP: rate-pressure product; VR: vascular resistance. Values for BF are ml.100 ml tissue-1.min-1.

^*different from pre in the same session (p < 0.05)

^#different from the maximal session at the same moment (p < 0.05). Analyses performed by two-way ANOVA.