Prostheses, Lower Limb, Foot, Energy Storing
Definition : Lower limb foot prostheses designed to store and release energy (i.e., dynamically respond) to and from the prosthesis during gait. These foot prostheses typically consist of external devices that incorporate elastic heel structures that absorb energy during midstance and terminal stance and release it during preswing and initial swing. Several different types are available including prostheses with an S-shaped spring, foam, and spacer that are integral parts of the foot; prostheses made of polymeric material with very specific elasticity and resistance requirements to optimize energy storage and return; and prostheses that maximize performance (in both energy and compliance) by using a complex metal heel component with a compressible foam piece and hinges to allow rotation on three planes. Each type uses a variation of a compressible heel. Energy-storing foot prostheses are intended for otherwise healthy people who have lost a foot and whose gait patterns and activity levels generate enough energy to be worth using.
Entry Terms : "Energy Storing Foot Prostheses"
UMDC code : 23398