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Revista Colombiana de Cardiología

versão impressa ISSN 0120-5633

Resumo

AGUDELO, Gloria M et al. Changes in blood pressure in a group of normotense volunteers after consumption or different doses of filtered coffee. Rev. Col. Cardiol. [online]. 2008, vol.15, n.6, pp.289-296. ISSN 0120-5633.

The association between coffee consumption and changes in blood pressure values is not clear yet. Although some studies show a positive correlation, others fail to confirm it. The aim of this study was to determine changes in blood pressure values in a group of normotense volunteers submitted to consumption of different doses of filtered coffee. This is a prospective clinical controlled study in which four groups were conformed and were submitted during a period of six weeks to consumption of different doses of filtered coffee: group one did not have coffee, group two consumed 200 mL, group three 400 mL and group four 600 mL. Blood pressure values were measured before and at the end of the intervention in each subject; in the control group coffeine concentration was measured before, during and at the end of the intervention. The results showed comparable groups by gender, age and body mass index, without significant differences in basal conditions. After the intervention, systolic and diastolic blood pressure did not show any difference between the groups, with the exception of group four in which diastolic blood pressure diminished significantly (p=0.006). Between the groups, the changes in systolic and diastolic blood pressure values were not significant (p=0.510 and 0.430 respectively). In conclusion, consumption of different doses of filtered coffee did not cause significant changes in blood pressure values; the group that did not have coffee did not show significant lowering of blood pressure values.

Palavras-chave : systolic blood pressure; diastolic blood pressure; filtered coffee; coffeine; cardiovascular risk.

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