Energy storage and return (ESR) feet have long been assumed to promote metabolically efficient amputee gait. However, despite being prescribed for approximately 30 yr, there is limited evidence that they achieve this desired function. Here, we report a meta-analysis of data from 10 studies that met our selection criteria to determine whether amputee walking with ESR feet is more efficient than ...

As more and more prosthetic feet become commercially available, the selection of the appropriate device is a more difficult task for clinical team members. To date, ranking prosthetic feet based on biomechanical parameters has been done using the spring efficiency. The current analytical technique for calculating spring efficiency has two flaws: first, prosthetic feet with a bendable flexible k...

Postural stability of five unilateral above-knee amputee children was measured when wearing the SACH and the experimental Child Amputee Prosthetic Project (CAPP) prosthetic foot. Excursions of the centre of pressure of the supportive forces were recorded via force platform during sustained weight-shifting forward, backward, left, right, and during normal standing. Visual proprioception effects ...

This paper describes a simple approach to the fatigue testing of prosthetic feet. A fatigue testing machine for prosthetic feet was designed as part of the programme to develop an energy storing prosthetic foot (ESPF). The fatigue tester does not simulate the loading pattern on the foot during normal walking. However, cyclic vertical loads are applied to the heel and forefoot during heel-strike...

The purpose of this investigation was to measure the effect of two terminal prosthetic components, the SACH foot and the single axis foot, on the locomotion patterns of unilateral below-knee amputees. The ten subjects who participated in the study were evaluated on two occasions, once following prescription of a PTB prosthesis and one terminal device and once following its replacement with the ...

The effects of a non-articulated SACH and a multiaxial foot-ankle mechanism on the performance of low-activity users are of great interest for practitioners in amputee rehabilitation. The aim of this study is to compare these two prosthetic feet and assess possible improvements introduced by the increased degrees of freedom provided by the multiaxial foot. For this purpose, a group of 20 hypomo...

Consistent hashing has played an indispensable role in cloud infrastructure, although its load balancing performance is not necessarily perfect. long remained the most widely used method despite many methods being proposed to improve because these trade off against consistency, memory usage, lookup performance, and/or fault-tolerance. This article presents Structured Allocation-based Hashing (S...

I. LOWER-EXTREMITY PROSTHETICS A. Basic Studies Preformed Thermoplastic Above-Knee Sockets B. Development (Components) 1. SACH Foot Modificaion 2. VAPC Modular Foot C. Development (Techniques) Cosmetic Finishing for Skeletal Prostheses D. Evaluation (Components) 1. Blatchford Stabilized Knee (BSK) 2. Hosmer Pneumatic Swing Control Knee 3. Regnell Swing and Stance Mechanism 4. U.S. Manufacturing...