[Intraeffort tension evolution in normotensive, borderline, and mild hypertensive subjects].

391 patients were studied, 288 males whose average age was forty years old, and 103 females whose average age was forty-five years old. They were divided into three groups, according to the values of the diastolic blood pressure in basal conditions: a) Normotensive (less than 90); b) Borderline (90); c) Mild Hypertensive (95-100 mm Hg). Comparison between sexes and ages was also carried out, being these last results analyzed in two groups: from 20 to 40 years old and from 41 to 69 years old. The values of statistical significance were as follows: as to the group, both basal systolic and diastolic blood pressure, systolic and diastolic at 600 KGM and at 5 minutes of recuperation. As to sex: basal cardiac frequency at 600 KGM and diastolic blood pressure at 5 minutes of recuperation. Body weight did not show correlation with systolic or diastolic blood pressure at 600 KGM.