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Training Persons with Spinal Cord Injury to Ambulate Using a Powered Exoskeleton
Published on: June 16, 2016
Exoskeletons vs. exosuits: A comparative analysis using biological-based computer simulation
Javier Bermejo-García1, Francisco Romero-Sánchez1, Rafael Agujetas1
1Universidad de Extremadura, Department of Mechanical Engineering, Energy and Materials, Av. de Elvas s/n, Badajoz, 06006, Spain.
Background:
Interest in the design of gait assistance devices has experienced significant growth in recent years. Among various uses of assistive devices, those aimed at supporting the elderly have gained importance due to the rising population of this age group.
Methods:
This study aims to compare the efficacy of two types of assistive devices through musculoskeletal simulations. One case is an ideal device, simulating the motor actuation as it would be in a rigid exoskeleton, and, cable-assisted devices, simulating the assistance of an exosuit. The simulations were based on data obtained from 9 subjects. OpenSim, an open-source software, was employed to conduct the simulations.
Results:
Our findings indicate that the cable-assisted device outperforms the traditional exoskeleton by achieving a more significant reduction in the metabolic cost with relatively lower assistance power.
Conclusion:
Cable-assisted gait assistance devices have shown comparable results to traditional exoskeletons, with the added advantage of improved performance through reduced power requirements.
