A wearable lightweight exoskeleton with full degrees of freedom for upper-limb power assistance

Liu, Chang; Liang, Hongyu; Murata, Yoshitaka; Li, Peirang; Matsuzawa, Ryuichi; Zhu, Chi

doi:10.1080/01691864.2020.1854115

Cited by 11 publications

(8 citation statements)

References 24 publications

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“…Our discussion here focuses on walking, load-carrying, and supporting as these motions are mainly associated with industrial [58], healthcare [74], and daily human life [46] application scenarios. Liu et al [76] proposed a passive upper exoskeleton for manual sanding operation. It helps to support a user's upper arm when he or she holds a polisher or a drill in hands and provides effective static posture support.…”

Section: Discussionmentioning

confidence: 99%

“…[74] and Lee et al [75] designed a sit-to-stand device for elderly and spinal-injured people by combining gait trainers and partial weight-bearing lifters. There are also reported works of passive upper limb supporters for sanding operation [76], pneumatic muscleactuating arms [77], arm supporters [78], walking protection [79] and other exoskeletons [80]. These practical tools were all designed for specific motions.…”

Section: B Synthetic Passive Exoskeletonsmentioning

confidence: 99%

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Recent Development of Unpowered Exoskeletons for Lower Extremity: A Survey

2021

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Unpowered exoskeletons (UEs) have attracted extensive research attentions for their portability, handleability and simplicity. However, designing exoskeletons without any active actuators is a great challenge because essential criteria such as performance enhancement, low impedance, and comfort must be met. This paper reviews the UEs researches from three aspects including modeling for understanding gait pattern, mechanical designs, and validation methods, which are main considerations of designing UEs. This review is based on the reported works in the past two decades and underlines some practical opportunities and challenges. Statistical data analysis and critical reviews are stated to understand human gait patterns, designing of UEs, and ergonomic validation. This review is trying to inspire a common understanding about passive exoskeletons for lower extremity and promote discussion among researchers, developers, or robotic practitioners.

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Section: Discussionmentioning

confidence: 99%

Section: B Synthetic Passive Exoskeletonsmentioning

confidence: 99%

Recent Development of Unpowered Exoskeletons for Lower Extremity: A Survey

2021

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“…There were also a number of studies that developed portable exoskeletons/exosuits to support elbow movement [ 17 , 23 , 27 , 31 , 38 , 39 , 45 , 52 , 57 , 58 , 59 , 60 , 61 , 64 ], or both hand and elbow motions [ 24 , 28 , 51 ]. Only one portable exoskeleton was found in the literature that provided power assistance for the flexion/extension movement of both elbow and shoulder joints [ 71 ]. Most of the portable upper limb robots mentioned above had self-contained architecture.…”

Section: Resultsmentioning

confidence: 99%

“…Most of the portable upper limb robots mentioned above had self-contained architecture. Only a few powered exoskeletons assisting elbow movement [ 24 ] or elbow–shoulder movements [ 71 ] required the user to wear backpack support while operating the device.…”

Section: Resultsmentioning

confidence: 99%

“…Only 12% (eight articles) of the reviewed exoskeletons were developed for potential application in human performance augmentation [ 31 , 39 , 50 , 71 ], which can enhance the strength, endurance, or physical capabilities of healthy individuals during repetitive and/or strenuous tasks in factories, warehouses, or military bases or excursions. Using these devices can reduce the risk of developing musculoskeletal disorders in industry workers and military personnel, as well as reducing their metabolic costs during lifting or carrying of heavy loads.…”

Section: Resultsmentioning

confidence: 99%

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Myoelectric Control Systems for Upper Limb Wearable Robotic Exoskeletons and Exosuits—A Systematic Review

Choudhury

Hosseini

et al. 2022

Sensors

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In recent years, myoelectric control systems have emerged for upper limb wearable robotic exoskeletons to provide movement assistance and/or to restore motor functions in people with motor disabilities and to augment human performance in able-bodied individuals. In myoelectric control, electromyographic (EMG) signals from muscles are utilized to implement control strategies in exoskeletons and exosuits, improving adaptability and human–robot interactions during various motion tasks. This paper reviews the state-of-the-art myoelectric control systems designed for upper-limb wearable robotic exoskeletons and exosuits, and highlights the key focus areas for future research directions. Here, different modalities of existing myoelectric control systems were described in detail, and their advantages and disadvantages were summarized. Furthermore, key design aspects (i.e., supported degrees of freedom, portability, and intended application scenario) and the type of experiments conducted to validate the efficacy of the proposed myoelectric controllers were also discussed. Finally, the challenges and limitations of current myoelectric control systems were analyzed, and future research directions were suggested.

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