When treating an acute, 2nd degree ankle sprain, which exercise should be given to maintain joint mobility?

Maintaining joint mobility in the case of an acute, 2nd degree ankle sprain is crucial for preventing stiffness and ensuring proper recovery. The recommended approach involves performing pain-free passive range of motion (PROM) exercises for the ankle. This type of exercise focuses on moving the joint through its available range without causing additional pain or stress to the injured area.

Engaging in pain-free PROM helps to preserve flexibility and improve circulation in the affected area, which is essential for healing. It allows the joint to maintain some level of mobility while avoiding any further strain that could aggravate the injury.

In contrast, strengthening exercises for the calf muscles, passive stretching of ligaments, and aerobic exercises may not be appropriate for an acute injury. Strengthening should be introduced later in the recovery process after mobility is established, as it could stress the injury when it's still healing. Passive stretching of ligaments is not suitable for acute injuries, as this can exacerbate pain and delay recovery. Aerobic exercises may contribute to overall fitness but do not directly address the immediate need for joint mobility in the affected area.