Abstract
The frequency of aerobic exercise training in reducing the increase in arterial stiffness during acute hyperglycemia, a risk factor for cardiovascular disease, is unknown. The aim of the study was to determine the aerobic exercise training frequency on arterial stiffness in a hyperglycemic state in middle-aged and elderly females. Twenty healthy elderly people were randomly assigned to a two-times-a-week (T2, n = 10) and four-times-a-week (T4, n = 10) exercise group. All participants exercised for 35 min per session, which consisted of jogging exercises with a heart rate intensity of 65%. Brachial-ankle (ba), and heart-brachial (hb) pulse wave velocity (PWV) were measured before, 4 and 8 weeks after intervention; before the oral ingestion of 75-g of glucose; and 30, 60, and 90 min after ingestion. The baPWV before and 4 weeks after the intervention increased in both groups (p < 0.05), but only increased 8 weeks after intervention in the T2 group. hbPWV was unchanged before, 4 and 8 weeks after intervention in both groups. These findings show that frequent aerobic exercise suppresses the increase in arterial stiffness following glucose intake. The results of this study can be used to support the implementation of exercise programs for middle-aged and elderly patients.
Highlights
There was no significant difference in the comparison at other times
Previous studies have reported that the hbPWV does not change after the ingestion of glucose in healthy, elderly participants [15], which is consistent with the results of this study where there was no change in the hbPWV after the 75-g-OGTT in healthy, middle-aged, and elderly participants
The results of this study suggest that the increase in systemic arterial stiffness during acute hyperglycemia may be influenced by peripheral arterial stiffness rather than aortic stiffness
Summary
Gordin et al [4]
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