Lauren Berrett

Mechanical engineering

Hometown: Omaha, Nebraska, United States

Graduation date: Spring 2021

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FURI | Spring 2021

Study Examining Human Postural Stability with Perturbations Applied Utilizing Dual-Axis Robotic Platform

This study investigated the impacts of 2-dimensional oscillatory perturbations on human standing balance. A dual-axis robotic platform was utilized to apply oscillatory perturbations and evaluate the subject’s postural stability during quiet standing. Impacts of perturbation direction, amplitude, and frequency on postural stability were investigated by analyzing different stability measures, specifically center-of-pressure (COP) path length, Time-to-Boundary (TtB), and sway area. The study found that postural stability is significantly worsened as the frequency and amplitude of perturbation increase, and 2D perturbations compromise postural stability more than 1D perturbations.

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