What type of device is suggested to cushion the impact of heel strike?

The SACH heel, which stands for "Solid Ankle Cushion Heel," is designed to absorb shock and provide cushioning during the heel strike phase of walking. This type of heel is commonly used in prosthetics, as it allows for a smoother transition from heel strike to weight acceptance. The cushioning material in the SACH heel compresses when the foot strikes the ground, reducing the impact forces transmitted through the limb. This can help enhance comfort and stability for the user.

In contrast, an extended steel shank serves a different purpose, primarily providing rigidity and support to the midsole of footwear. It does not function to cushion the heel strike. The medial stabilizer is usually used to provide additional support and control for conditions such as overpronation but does not specifically address the shock absorption needed at the heel strike. Thus, the SACH heel is the most suitable choice for cushioning impact during heel strike.