What is the purpose of an ankle-foot orthosis (AFO)?

An ankle-foot orthosis (AFO) is designed primarily to support the ankle and foot in a functional position, which is essential for enhancing mobility. This supportive device plays a crucial role in maintaining proper alignment, stability, and function, particularly for individuals with conditions that might impair their ability to walk effectively.

By promoting optimal positioning of the ankle and foot, an AFO helps ensure that the wearer can move safely and efficiently, reducing the risk of falls and other injuries that can occur due to instability. Additionally, it allows for improved balance and gait, which are vital for daily activities and overall quality of life.

The other options do not capture the primary function of an AFO: while some may consider aesthetics, the main goal of the orthosis is functional support rather than appearance. Decreasing the overall weight or completely limiting foot movement are not objectives of AFO design, as they are focused on promoting mobility and allowing for necessary movement while still providing the required support.