Instrumental Analysis of Walking in People With Osseointegrated Prostheses for Lower Extremity Amputation: Comparative Evaluation With Traditional Socket Prostheses

"Tests of standing balance will be performed using the EquiTest System posturographic platform. Individuals will be requested to perform three tasks within the EquiTest battery: Sensory Organization test, Motor Control test backward/forward, Adaptation Test upward/downward.~Gait analysis will be performed on a force sensorized split-belt treadmill. Participants will walk at increasing velocities from 0.2 m/s to the highest sustainable velocity in tied-belt condition. Velocity will be increased by 0.1 m/s every 20 consecutive strides.~During gait analysis in the split-belt condition, participants will walk for 30 seconds with both belts at 0.4 m/s. Then, the velocity of the belt under the prosthetic limb will be increased to 1.2 m/s. After 6 minutes, the velocity of the faster belt will be restored at 0.4 m/s for 6 more minutes. Different combinations of velocities could be tested based on the patients' characteristics, maintaining a ratio of 3:1 between the velocities of the 2 belts."