Which technique is used to maintain spinal motion restriction (SMR) while in the water?

The vise grip technique is specifically designed to maintain spinal motion restriction while in the water. This technique involves securely holding the victim's head in alignment with the spine, minimizing any movement that could potentially exacerbate a spinal injury. By using this grip, the lifeguard can stabilize the head and neck effectively, allowing for safe movement of the person while in the water and ensuring that any spinal injuries are not aggravated.

Maintaining spinal motion restriction is critical in water rescues, as it helps prevent further injury to an individual who may have sustained a spinal cord injury. The vise grip supports the necessary alignment and control, which is vital for effective and safe rescue operations.

Other techniques, while potentially useful in different contexts, do not focus specifically on the goals of spinal motion restriction in aquatic environments. This makes the vise grip the most suitable choice for SMR in the water.