Why the study?
The study was conducted to examine vascular control after sympathetic stimulation by tyramine infusion in hypertensive rats submitted to swimming training.
Does swimming training improve autonomic function and vascular control in spontaneously hypertensive rats?
Population
Male normotensive and hypertensive rats
Comparison
Swimming-trained vs sedentary normotensive and hypertensive rats
Design
Animal experimental study
Key result
Exercise training in spontaneously hypertensive rats significantly attenuated pressor and heart rate responses to tyramine infusion (p < 0.001), improving cardiovascular autonomic dysfunction.
Authors
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Exercise may improve autonomic balance in hypertension; leaves open translation from rat models to clinical practice.
Does swimming training improve autonomic function and vascular control in spontaneously hypertensive rats?
p-value: p=<0.001
Exercise training attenuates sympathetic nerve ending adjustments and vasoconstrictor effects, improving cardiovascular autonomic dysfunction in a hypertensive rat model.
Miranda et al. (2020) studied Hypertension. Swimming training vs. Sedentary was evaluated on Pressor and heart rate responses to tyramine infusion (p=<0.001). Exercise training in spontaneously hypertensive rats significantly attenuated pressor and heart rate responses to tyramine infusion (p < 0.001), improving cardiovascular autonomic dysfunction.
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