Acute effects of volume-matched isometric exercise intensity on vascular function and autonomic regulation in men with elevated blood pressure.
Min Ji Jeong, Jae-Geun Kim, Wonil Park et al.
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In 30 seconds
This randomized controlled trial examined the acute effects of high-intensity isometric exercise (HIIE) versus low-intensity isometric exercise (LIIE) on cardiovascular function in 17 men with elevated blood pressure. While no significant reduction in blood pressure was observed, HIIE resulted in greater autonomic disturbance and improved vascular responses, with right baPWV decreasing and flow-mediated dilation increasing after both exercise conditions.
Key findings
- HIIE led to greater autonomic disturbance with elevated heart rate and reduced HRV indices during recovery (p < 0.05).
- Right baPWV decreased following HIIE (p < 0.05).
- FMD increased after both HIIE and LIIE (p < 0.001).
Why it matters
Understanding the differential effects of exercise intensity on vascular function and autonomic regulation can inform non-pharmacological strategies for managing elevated blood pressure, potentially enhancing patient outcomes in cardiovascular health.