Low-intensity swimming training does not improve hypertension in rats

Abstract

Aim: To investigate the effects of low-intensity swimming training upon arterial blood pressure in 26-weeks-old male spontaneously hypertensive rats. Methods: The animals were randomly divided into two groups: sedentary (SED, n = 7) and trained (TR, n = 7). The aerobic training consisted of 90-min swimming sessions, five days a week. After nine weeks of intervention, the arterial blood pressure and heart rate were invasively measured using a catheter inserted into the femoral artery. Results: No significant differences were observed between groups for systolic arterial blood pressure (

Exercise intensities modulate cognitive function in spontaneously hypertensive rats through oxidative mediated synaptic plasticity in hippocampus

“…(1) Systolic blood pressure: the exercise‐induced improvement in cognition does not seem to be due to the decrease in systolic blood pressure, since systolic blood pressure was similar among the sedentary and exercised SHR groups. The effects of exercise on blood pressure in SHR vary; some studies have reported that exercise has an anti‐hypertensive effect, 52 while others have reported no change in hypertension, 53 and others have even reported exacerbations 54 . Our results are consistent with previous studies, in that swimming did not reduce blood pressure in the SHR with established hypertension 54 .…”

“…The effects of exercise on blood pressure in SHR vary; some studies have reported that exercise has an anti‐hypertensive effect, 52 while others have reported no change in hypertension, 53 and others have even reported exacerbations 54 . Our results are consistent with previous studies, in that swimming did not reduce blood pressure in the SHR with established hypertension 54 . Besides, previous studies have shown that elevated pulse pressure was associated with age‐related cognitive decline 55 .…”