Table 3.

Blood pressure and physical activity variables for study participants in the weight reduction intervention

	Standard reduced-energy-density diet		Walnut-enriched reduced-energy diet		p (between groups)
	n	Mean(SE)	n	Mean(SE)
Systolic blood pressure, mm Hg
Baseline	51	123 (2)	49	124 (3)	0.77
3 Months	49	117 (2) *	48	116 (2) *	0.73
6 Months	49	119 (2)	46	118 (2) *	0.68
Diastolic blood pressure, mm Hg
Baseline	51	82 (1)	49	82 (2)	0.72
3 Months	49	77 (1) *	48	76 (1) *	0.57
6 Months	49	78 (2) *	46	77 (1) *	0.70
Moderate/strenuous physical activity, minutes/week
Baseline	51	120 (22)	49	133 (18)	0.53
3 Months	51	328 (31) *	48	337 (33) *	0.84
6 Months	49	351 (31) *	47	321 (29) *	0.48
% Meeting physical activity recommendations
Baseline	51	25	49	45	0.04
3 Months	51	78	48	79	0.93
6 Months	47	85	47	81	0.58
Step test, heart rate/30s
Baseline	51	57 (2)	49	60 (2)	0.14
3 Months	47	47 (1) *	47	49 (1) *	0.33
6 Months	47	45 (1)*	45	47 (1) *	0.18

* Different from baseline within group, p < 0.01 for each