Isometric Resistance Exercise for Hypertension

Background: Isometric resistance exercises (IREs) have great potential to improve blood pressure (BP) control. However, the effectiveness of IREs in reducing HT is still unknown because their hypotensive effects have not been detected using ambulatory BP measurements (ABPM), which are the current standard for BP measurement. Methods: This first adequately-powered RCT will involve 390 patients with HT who do not meet the current physical activity guidelines defined by the World Health Organization. Participants will be randomly assigned in a 1:1 ratio using stratified and blocked randomization to either the IRE (wall squat) group or stretching exercise (active control) group. A well-structured, widely accepted, and validated 24-week wall squat program (2 minutes per exercise, 2 minutes of rest between sets, and 3 sessions per week) will be implemented, as it has been commonly used in previous research. Adherence to the program will be monitored using smartwatches, and regular contact with patients through social media will help ensure adherence. All patients will be followed up for 1 year to investigate the long-term effects of IREs on BP. Control group will receive exact same treatment except that IRE is replaced by frequency-matched and time-matched stretching exercise. The primary outcome measure will be systolic daytime ABPM BP at 24 weeks. Secondary outcome measures will include other BP and ABPM parameters at 12 weeks, 24weeks and 1year, cfPWV at baseline, 24 weeks and …

This description comes directly from the study's public registry record.

Eric Kam-Pui Lee, MSc, FRACGP  ·  22528462  ·  lkp032@cuhk.edu.hk

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