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N Z Med J. 1995 Jul 14;108(1003):266-8.

Salt restriction and physical activity in treated hypertensives.

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  • 1Department of General Practice, University of Auckland School of Medicine.



To determine the effect on blood pressure from brisk walking with or without salt restriction in a community based sample of treated hypertensives.


The intervention was undertaken in a community setting with a factorial randomised controlled trial and blinded assessment of blood pressure. One hundred and eighty one healthy adult volunteers with a sedentary lifestyle and on pharmacological therapy for hypertension briskly walked for 40 minutes three times per week with or without salt restriction. Systolic and diastolic blood pressure were assessed at three and six months.


Of the original 208 participants 181 (87%) completed the study. significant reductions of up to 7 mm Hg were found in systolic blood pressure at 3 months for brisk walking alone (p = 0.04) and salt restriction alone (p = 0.03) but not for the combined intervention (p = 0.17). No significant change was found for diastolic blood pressure. There was no significant change in blood pressure at 6 months.


Simple advice on exercise and sodium restriction in a community setting can significantly lower systolic blood pressure at least for 3 months. The combination of the two interventions was less effective than each therapy alone.

[PubMed - indexed for MEDLINE]
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