Single Axis Foot is the simplest type of non-articulated foot. The name refers to a somewhat soft rubber heel wedge that mimics ankle action by compressing under load during the early part of the stance phase of walking. The keel is rigid, which provides midstance stability but little lateral movement. The sach foot is available in various heel heights to match individual shoes with different heel heights.
Elastic (flexible) Keel Foot:
- This prosthetic foot allows motion similar to that of Sach feet. In addition, the forefoot is able to conform to uneven terrain but remains supportive and stable during standing and walking.