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Performance Evaluation of Lower Limb Exoskeletons: A Systematic Review

AuthorsPinto-Fernandez, D.; Torricelli, Diego; Sanchez-Villamanan, Maria del Carmen; Aller, F.; Mombaur, Katja; Conti, R.; Vitiello, Nicola; Moreno, Juan Camilo ; Pons Rovira, José Luis
KeywordsLegged locomotion
Kinetic theory
Benchmark testing
Spatiotemporal phenomena
Issue Date 7
CitationIEEE Transactions on Neural Systems and Rehabilitation Engineering 28: 1573- 1583 (2020)
AbstractBenchmarks have long been used to verify and compare the readiness level of different technologies in many application domains. In the field of wearable robots, the lack of a recognized benchmarking methodology is one important impediment that may hamper the efficient translation of research prototypes into actual products. At the same time, an exponentially growing number of research studies are addressing the problem of quantifying the performance of robotic exoskeletons, resulting in a rich and highly heterogeneous picture of methods, variables and protocols. This review aims to organize this information, and identify the most promising performance indicators that can be converted into practical benchmarks. We focus our analysis on lower limb functions, including a wide spectrum of motor skills and performance indicators. We found that, in general, the evaluation of lower limb exoskeletons is still largely focused on straight walking, with poor coverage of most of the basic motor skills that make up the activities of daily life. Our analysis also reveals a clear bias towards generic kinematics and kinetic indicators, in spite of the metrics of human-robot interaction. Based on these results, we identify and discuss a number of promising research directions that may help the community to attain a comprehensive benchmarking methodology for robot-assisted locomotion more efficiently.
Publisher version (URL)http://dx.doi.org/10.1109/TNSRE.2020.2989481
Identifiersdoi: 10.1109/TNSRE.2020.2989481
issn: 1558-0210
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