Meet the inventor of the ArmLock

Mark Laurensse is a physiotherapist with over 30 years of experience and a focus on tennis elbow. He graduated from the University of Alberta and is based in Edmonton.

Appreciating how restricted the tissues are in patients with chronic tennis elbow, Mark developed the ArmLock brace to allow those with tennis elbow to take control of their recovery.

Placed as a finalist in the ASTech Awards in the Medical, Healthcare, and Pharmaceuticals category in 2025

In 2025, placed within ScaleUP Canada’s Edmonton 50 companies for having the highest potential for positive impact on the world.

Hosted tennis elbow workshops to help with assessing and treating the condition.

While treating patients with chronic tennis elbow, I was surprised by how tight and restricted the affected muscles felt. I discovered that applying a gentle, sustained stretch for 20 to 30 minutes often brought remarkable relief.

A few years later, my wife developed plantar fasciitis. Since I was familiar with the condition, I bought her a “Strassburg Sock,” a device designed to provide a sustained stretch to the tissues of the foot during rest. Out of curiosity, I tried the sock on my own arm — and that became my Eureka moment.

I realized the same sustained stretching approach I had been using with my patients could be adapted into a wearable device for tennis elbow. I modified the concept into a glove, added a supportive rigid component, and the ArmLock was born.