Isometric Handgrip Exercise for High Blood Pressure

This trial aims to determine if a simple handgrip exercise can help manage high blood pressure and improve brain function in older adults. Participants will use one of two handgrip devices, the Squegg or Zona Plus, in a supervised setting twice a week for four weeks. The study will evaluate the exercise's ease of use and effectiveness. It is suitable for English-speaking individuals aged 65 or older with high blood pressure who already attend the Physical Activity Centre of Excellence at McMaster University. As an unphased trial, this study allows participants to contribute to innovative research that could enhance health and wellness in older adults.

Research has shown that isometric handgrip exercises, such as those using the Squegg and Zona Plus devices, are generally safe and easy to use. Studies have found that these exercises can effectively lower blood pressure without causing major side effects. For example, one study noted a significant drop in blood pressure with these exercises, and users reported increased comfort.

The Squegg device has been linked to a noticeable decrease in systolic blood pressure, with results showing a reduction from 141 mmHg to 127 mmHg in a short time. Similarly, the Zona Plus device demonstrated significant blood pressure reductions in most users within a few weeks.

Researchers are excited about using isometric handgrip exercises, like those with the Squegg and Zona Plus devices, for managing high blood pressure because these methods offer a non-drug approach to treatment. Unlike standard options such as ACE inhibitors or beta-blockers that rely on medication, these exercises focus on strengthening the cardiovascular system through short, simple handgrip exercises. This approach is appealing because it could reduce reliance on medication, potentially minimizing side effects and offering an accessible, at-home treatment option for individuals looking to manage their blood pressure naturally. Additionally, the smartphone compatibility of the Squegg device makes it easy for users to track their progress and stay motivated.

This trial will compare the effectiveness of two handgrip devices for managing high blood pressure. Studies have shown that squeezing exercises using handgrip devices can effectively lower blood pressure. Participants in one arm of this trial will use the Zona Plus handgrip device, which has been linked to an average drop of 19 points in blood pressure and has received recognition from well-known institutions like the Mayo Clinic. Participants in another arm will use the Squegg device. Although specific data for the Squegg device is unavailable, handgrip exercises, in general, are known to positively affect blood pressure. Thus, both the Squegg and Zona Plus devices might help manage high blood pressure in older adults.⁶⁷⁸⁹¹⁰