Össur Iceland ehf

The study aims to conduct a formative evaluation, along with verification, validation, and comparative analysis of the stumble recovery function in prosthetic devices by collecting relevant clinical data. The study will involve participants who are current users of lower-limb prosthetics. Utilizing a robust study design, data will be gathered in both controlled setting and real-world to thoroughly assess the performance, safety, and user satisfaction of the function. The scientific value of this research lies in its potential to enhance prosthetic technology, support evidence-based clinical practices, and ultimately improve the quality of life for users by reducing fall risks and increasing mobility confidence.

This protocol outlines a study designed to investigate three different methodologies for inducing gait perturbations.
Subjects will be divided into two groups: prosthetic users and able-bodied individuals.
Each group will undergo a series of tests where controlled perturbations are applied using up to three methodologies with the number depending on factors such as time and fatigue. These methodologies may include mechanical, visual, or auditory perturbations designed to mimic unexpected obstacles or changes in terrain.

The goal of this interventional study is to investigate a new firmware in development for Power Knee on gait and daily life activities in unilateral transfemoral amputees. The main question it aims to answer is:
What are the effects of a new firmware on sit-to-stand, level walking and stair ascent ?
Researchers will compare both a new and the current marketed firmware to see if there is any changes in performance.
Participants will be asked to perform some activities of daily living and some functional tests.