Abstract

CABRERA ROJO, Iliana  and  IZAGUIRRE RODRIGUEZ, Guillermo. Cardiovascular response during physical exercise in normotensive and prehypertensive subjects. Rev Cubana Invest Bioméd [online]. 2008, vol.27, n.1. ISSN 0864-0300.

The exertion tests are useful to evaluate cardiovascular diseases. The early characterization of an unbalance of the organism is essential. That's why, we proposed to identify during the physical exercise the pressure response, rhythm alterations and myocardial ischemia in normotensive and prehypertensive individuals. A diagnostic bicycle ergometric test was performed among 222 subjects with arterial pressure under 140/90 mmHg, normal ECG and with no drug treatment. Females (58.6 %) and white individuals (41.8%) prevailed. Arterial pressure on maximum effort was abnormal in 45.7 % and 88 % of them were prehypertensives. This variable showed an elevated significant difference (p=0.0000064) between normotensive and prehypertensives. Myocardial ischemia and arrhythmia were found in 21 individuals. It was concluded that the exercise test in these subjects evidenced early alterations in the control of arterial pressure and that myocardial ischemias and arrhythmias are not common in this subgroup.

Keywords : Ergometry; cardiovascular response; normotensive; prehypertensive.

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