Which statement best describes a GRAFO?

A GRAFO, or ground reaction ankle-foot orthosis, is designed to provide critical support at both the knee and ankle joints, making it particularly effective for individuals who may experience weakness or instability in these areas. The knee stability offered by the GRAFO prevents excessive flexion during stance phase, thereby promoting an upright posture and facilitating a smoother gait. Additionally, the ankle support contributes to maintaining optimal alignment and control of the foot position during walking.

This dual stability is essential for individuals with conditions such as drop foot or other neuromuscular disorders, where maintaining a proper gait pattern and preventing falls are crucial for mobility and safety. The GRAFO acts by utilizing ground reaction forces, which promote stability and can improve overall function during ambulation.

While the other options touch upon important functions of orthotic devices, they do not fully encompass the combined support capabilities at both the knee and ankle that characterize a GRAFO.