What is the function of the cuff on Boston/Lofstrand crutches?

The function of the cuff on Boston/Lofstrand crutches is to ensure a snug fit around the forearm. This design element is crucial because it helps to support the crutch itself while enabling the user to maintain control and balance. When the cuff fits securely around the forearm, it allows the user to partially bear weight through their arms, alleviating pressure on their wrists and hands. This snug fit also helps prevent the crutches from slipping down or falling away from the user, which is essential for their safety and mobility.

In contrast, while the cuff may indirectly support the wrist and provide a degree of stabilization, its primary purpose is firmly centered on securing the crutch to the forearm. Additionally, the cuff does not primarily serve as a gripping mechanism compared to the handgrip of the crutch, and it is not designed to stabilize the elbow but rather to allow for some movement while maintaining adequate support.