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Year : 2020  |  Volume : 11  |  Issue : 1  |  Page : 62

The impact of high-intensity interval training versus moderate-intensity continuous training on carotid intima-media thickness and ankle-brachial index in middle-aged women

1 Department of Sports Physiology, Faculty of Sport Sciences, Ferdowsi University of Mashhad, Mashhad, Iran
2 Department of Cardiology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
3 Department of Radiology, Mashhad University of Medical Sciences, Mashhad, Iran

Correspondence Address:
Seyyed Reza Attarzadeh Hosseini
Department of Sports Physiology, Faculty of Sport Sciences, Ferdowsi University of Mashhad, Mashhad
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/ijpvm.IJPVM_524_18

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Objective: Obesity has been linked to cardiovascular risk factors characterized by endothelial dysfunction and arterial wall thickening. Regular exercise training is recognized as a powerful tool to improve endothelial function and cardiovascular risk profile, but it is unknown which of high-intensity interval training or moderate-intensity continuous training is the best exercise. Materials and Methods: A total of 33 inactive and overweight women aged 40–50 years old and body mass index >27 kg/m[2] were randomized to high-intensity interval training, moderate-intensity continuous training, or control. The exercise intervention consisted of 12 weeks of training and three supervised sessions per week. The moderate-intensity group was trained continuously for 47 min at 60–70% of maximal heart rate. High-intensity interval training consisted of four interval bouts of 4 min at 85%–95% of maximal heart rate with 3 min breaks at 50%–60% of maximal heart rate between the intervals. For all analyses, statistical significance was assigned at P < 0.05. Results: According to our findings, while carotid intima-media thickness decreased in both training groups, this reduction was not statistically significant. In the high-intensity training group, the right ankle-brachial index increased significantly (P = 0.007). Conclusion: Twelve weeks of exercise training, especially in high-intensity interval training, have led to improving lipid profiles and endothelial function, it can be said that regular and prolonged exercise can probably be a preventive factor in cardiovascular disease in overweight women.

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