Left ventricular volumes and hemodynamic responses to postexercise ischemia in healthy humans

Article Abstract:

This article investigates the cardiovascular mechanisms involved in postexercise circulatory occlusion. Results indicate that activating muscle metaboreceptors during postexercise circulatory occlusion results in an increase in mean arterial blood pressure by raising the total peripheral vascular resistance.

Brazil, Statistical Data Included, Usage, Measurement, Ischemia, Blood pressure measurement

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Cardiovascular physiology during supine cycle ergometry and Dobutamine stress

Article Abstract:

Results demonstrate that cardiac output is likely to differ between exercise and Dobutamine due to lack of skeletal muscular pump action leading to reduced ventricular preload. The cardiac output is a physiologic endpoint for stress testing. Data show that although Dobutamine can be used as a surrogate for exercise, the two are not equivalent and the cardiovascular adaptation differ significantly.

Evaluation, Statistics, Statistics (Data), Dobutamine

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Exercise-induced decrease in insular cortex rCBF during postexercise hypotension

Article Abstract:

The effect of exercise on the insular cortex (IC) region, a part of the brain involved in blood pressure (BP) modulation, which shows a decrease in the regional cerebral blood flow (rCBF) during postexercise hypotension (PEH) is examined. The data obtained from the study proves that the decrease in the IC neural activity is not caused by the reducing BP, but is an after effect of the exercise and hence highly contributes to PEH in humans.

Health aspects, Cerebral circulation, Observations, Brain mapping, Clinical report

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• Abstracts: Sympathoadrenergic mechanisms in reduced hemodynamic stress responses after exercise. Comparison of sympathetic nerve responses to neck and forearm isometric exercise

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