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The Effect of 8 Weeks of High-Intensity Interval Training-Based Cardiac Rehabilitation with Short Intervals and Passive Recovery on Body Fat Percentage, Blood Pressure, and Endothelial Function in Men with Coronary Artery Disease (CAD) and Hypertension (HTN) Following Percutaneous Coronary Intervention (PCI)
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Khalil ollah Moonikh1   , Hojjat Mardaneh Taleshmekaiel2 |
1- Farhangian University & Farhangian University , kh.moonikh@cfu.ac.ir
2- Farhangian University & Farhangian University |
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Abstract: (110 Views) |
Background and Aim: High-intensity interval training (HIIT), as an effective alternative to moderate intensity continuous training (MICT), has shown potential benefits in cardiac rehabilitation. However, the effects of short-interval HIIT protocols with passive recovery on this specific population have been less studied. The present study aimed to evaluate the effect of 8 weeks of HIIT-based cardiac rehabilitation with short intervals and passive recovery on body fat percentage, blood pressure, and endothelial function (FMD) in men with Coronary Artery Disease (CAD) and Hypertension (HTN) following Percutaneous Coronary Intervention (PCI).
Methods: This quasi-experimental study with a pretest-posttest design and a control group was conducted on 23 men aged 45-60 with hypertension and CAD following PCI. The participants were divided into two groups: an exercise group (n=11) and a control group (n=12). The exercise group performed an 8-week (3 sessions per week) short-interval HIIT protocol with passive recovery (30:30 seconds for 30 minutes) on a cycle ergometer, while the control group did not have any regular activity. Body fat percentage (InBody), blood pressure (digital), and FMD (Doppler ultrasound) were measured before and after the intervention. Data were analyzed using paired t-tests and ANCOVA (P<0.05).
Results: In the exercise group, there were significant decreases in body fat percentage (P=0.006), systolic blood pressure (P=0.004), and diastolic blood pressure (P=0.011), and a significant increase in FMD (P=0.002). Inter-group changes were also significant in favor of the exercise group (body fat percentage, P=0.018; systolic blood pressure, P=0.007; diastolic blood pressure, P=0.024 and FMD, P=0.003).
Conclusion: Cardiac Rehabilitation Based on HIIT with Short Intervals and Passive Recovery Improves Body Composition, Blood Pressure, and Endothelial Function in Patients with CAD and HTN Post-PCI. This training protocol is suggested as a novel, effective, and time-efficient approach for reducing the risk of secondary complications and increasing patient adherence and compliance in cardiac rehabilitation programs.
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| Keywords: High-intensity interval training, Coronary artery disease, Endothelial function, Blood pressure, Body fat percentage, Cardiac rehabilitation |
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Type of Study: Research |
Subject:
Sport Physiology
Received: 2025/08/21 | Accepted: 2025/10/4 | Published: 2025/11/29
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