Measuring Upper Extremity Loading in Passive Exoskeleton-Assisted Gait: A Case Study

This study investigates upper extremity loading during exoskeleton-assisted walking with the UNILEXA passive exoskeleton using an instrumented platform walker. The goal was to assess upper limb weight-bearing and its implications for rehabilitation. Data were collected from two participants performing walking and standing tasks. During steady walking, the average vertical load on the walker was approximately 30% of body weight, while standing maneuvers showed peaks up to $\mathbf{9 0 \%}$. These results demonstrate that, despite the passive nature of the UNILEXA exoskeleton, upper extremity loading remains within acceptable limits, suggesting its suitability for safe and effective rehabilitation.