Academic literature on the topic 'Powered Exoskeleton'

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Journal articles on the topic "Powered Exoskeleton"

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Acosta-Sojo, Yadrianna, and Leia Stirling. "Muscle Activation Differs Between Individuals During Initial Powered Ankle Exoskeleton Adaptation." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 65, no. 1 (September 2021): 415–18. http://dx.doi.org/10.1177/1071181321651055.

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Although previous studies have shown that powered exoskeletons reduce muscle activation while walking across participants, less is known about how they impact an individual’s muscle activation. This study examined an individual’s muscle activity during walking with a powered ankle exoskeleton. The designed human-exoskeleton coordination was defined as a decrease in medial gastrocnemius (MGAS) muscle activation with the exoskeleton powered and increase with the exoskeleton unpowered. 60% of the participants were observed to coordinate with the exoskeleton as designed, with 67% showing a decreas
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ROSEN, JACOB, and JOEL C. PERRY. "UPPER LIMB POWERED EXOSKELETON." International Journal of Humanoid Robotics 04, no. 03 (September 2007): 529–48. http://dx.doi.org/10.1142/s021984360700114x.

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An exoskeleton is a wearable robot with joints and links corresponding to those of the human body. With applications in rehabilitation medicine, virtual reality simulation, and teleoperation, exoskeletons offer benefits for both disabled and healthy populations. Analytical and experimental approaches were used to develop, integrate, and study a powered exoskeleton for the upper limb and its application as an assistive device. The kinematic and dynamic dataset of the upper limb during daily living activities was one among several factors guiding the development of an anthropomorphic, seven degr
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Choi, Hyunjin. "Assistance of a Person with Muscular Weakness Using a Joint-Torque-Assisting Exoskeletal Robot." Applied Sciences 11, no. 7 (March 31, 2021): 3114. http://dx.doi.org/10.3390/app11073114.

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Robotic systems for gait rehabilitation have been actively developed in recent years; many of the rehabilitation robots have been commercialized and utilized for treatment of real patients in hospitals. The first generation of gait rehabilitation robots was a tethered exoskeleton system on a treadmill. While these robots have become a new trend in rehabilitation medicine, there are several arguments about the effectiveness of such robots due to the passiveness of the motions that the robots generate, i.e., the continuous passive motions may limit the active involvement of patients’ voluntary m
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Bequette, Blake, Adam Norton, Eric Jones, and Leia Stirling. "Physical and Cognitive Load Effects Due to a Powered Lower-Body Exoskeleton." Human Factors: The Journal of the Human Factors and Ergonomics Society 62, no. 3 (March 23, 2020): 411–23. http://dx.doi.org/10.1177/0018720820907450.

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Objective The aim of this study is to determine the effects of a powered exoskeleton on measures of physical and cognitive performance. Background US warfighters carry heavy equipment into battle, and exoskeletons may reduce that burden. While exoskeletons are currently evaluated for their effects on physical performance, their cognitive effects are not currently considered. Method Twelve military members participated in a simulated patrol task under three conditions: wearing a powered exoskeleton (PWR), an unpowered exoskeleton (UNP), and without wearing an exoskeleton (OFF). While following
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Lippi, Vittorio, and Thomas Mergner. "A Challenge: Support of Standing Balance in Assistive Robotic Devices." Applied Sciences 10, no. 15 (July 29, 2020): 5240. http://dx.doi.org/10.3390/app10155240.

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Neurological patients using a powered lower-body exoskeleton for rehabilitation of standing and walking skills in an upright body pose face the safety challenge of postural instability and fall. Current research, therefore, develops exoskeletons with self-balancing functions. This study suggests basing the exoskeleton’s stabilization of standing posture on a human-derived postural control mechanism. A corresponding control system has previously been successfully tested with specific balancing tasks in humanoid robots. Here, we provide a short introduction into the control method and, using a l
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Duddy, Damien, Rónán Doherty, James Connolly, Stephen McNally, Johnny Loughrey, and Maria Faulkner. "The Effects of Powered Exoskeleton Gait Training on Cardiovascular Function and Gait Performance: A Systematic Review." Sensors 21, no. 9 (May 5, 2021): 3207. http://dx.doi.org/10.3390/s21093207.

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Patients with neurological impairments often experience physical deconditioning, resulting in reduced fitness and health. Powered exoskeleton training may be a successful method to combat physical deconditioning and its comorbidities, providing patients with a valuable and novel experience. This systematic review aimed to conduct a search of relevant literature, to examine the effects of powered exoskeleton training on cardiovascular function and gait performance. Two electronic database searches were performed (2 April 2020 to 12 February 2021) and manual reference list searches of relevant m
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Nelson, Allison J., Patrick T. Hall, Katherine R. Saul, and Dustin L. Crouch. "Effect of Mechanically Passive, Wearable Shoulder Exoskeletons on Muscle Output During Dynamic Upper Extremity Movements: A Computational Simulation Study." Journal of Applied Biomechanics 36, no. 2 (April 1, 2020): 59–67. http://dx.doi.org/10.1123/jab.2018-0369.

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Wearable passive (ie, spring powered) shoulder exoskeletons could reduce muscle output during motor tasks to help prevent or treat shoulder musculoskeletal disorders. However, most wearable passive shoulder exoskeletons have been designed and evaluated for static tasks, so it is unclear how they affect muscle output during dynamic tasks. The authors used a musculoskeletal model and Computed Muscle Control optimization to estimate muscle output with and without a wearable passive shoulder exoskeleton during 2 simulated dynamic tasks: abduction and upward reach. To an existing upper extremity mu
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Baptista, Renato, Francesco Salvaggio, Caterina Cavallo, Serena Pizzocaro, Svonko Galasso, Micaela Schmid, and Alessandro Marco De Nunzio. "Training-Induced Muscle Fatigue with a Powered Lower-Limb Exoskeleton: A Preliminary Study on Healthy Subjects." Medical Sciences 10, no. 4 (September 26, 2022): 55. http://dx.doi.org/10.3390/medsci10040055.

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Powered lower-limb exoskeletons represent a promising technology for helping the upright stance and gait of people with lower-body paralysis or severe paresis from spinal cord injury. The powered lower-limb exoskeleton assistance can reduce the development of lower-limb muscular fatigue as a risk factor for spasticity. Therefore, measuring powered lower-limb exoskeleton training-induced fatigue is relevant to guiding and improving such technology’s development. In this preliminary study, thirty healthy subjects (age 23.2 ± 2.7 years) performed three motor tasks: (i) walking overground (WO), (i
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Kulkarni, Chaitanya, Hsiang-Wen Hsing, Dina Kandi, Shriya Kommaraju, Nathan Lau, and Divya Srinivasan. "Designing An Augmented Reality Based Interface For Wearable Exoskeletons." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 64, no. 1 (December 2020): 38–41. http://dx.doi.org/10.1177/1071181320641012.

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Full-body, powered wearable exoskeletons combine the capabilities of machines and humans to maximize productivity. Powered exoskeletons can ease industrial workers in manipulating heavy loads in a manner that is difficult to automate. However, introduction of exoskeletons may result in unexpected work hazards, due to the mismatch between user-intended and executed actions thereby creating difficulties in sensing the physical operational envelope, need for increased clearance, and maneuverability limitations. To control such hazards, this paper presents a rearview human localization augmented r
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Saypulaev, G. R., M. R. Saypulaev, I. V. Merkuryev, B. I. Adamov, and R. B. Garcia. "Application of an Inertial Sensor Unit for Position Estimation and Motion Control of the Lower-Extremity Powered Exoskeleton." Advanced Engineering Research 22, no. 3 (October 12, 2022): 204–13. http://dx.doi.org/10.23947/2687-1653-2022-22-3-204-213.

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Introduction. The problem of controlling the lower-extremity powered exoskeleton motion was investigated. To solve it, it was proposed to use a program control and feedback control. The formation of control in the form of feedback required an assessment of the state of the exoskeleton (rotation angles, angular velocities, and accelerations of the links). The possibility of using an inertial measuring unit to estimate angular velocities and accelerations of exoskeleton links was considered. The work objective was to develop laws for the formation of the exoskeleton motion control, which could p
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Dissertations / Theses on the topic "Powered Exoskeleton"

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Dyberg, Malin, and Ahlbäck Elvira Troillet. "P.E.G.A.S : Powered Exoskeleton Grip Amplifying System." Thesis, KTH, Mekatronik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-295802.

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In this bachelor’s thesis, the development and construction of a soft exoskeleton for a human hand is described.The purpose of the project includes evaluating what type of exoskeleton that is most suitable for aiding the user inactivities of daily living and how this exoskeleton can be constructed in order to increase grip strength in the human hand. In addition, the prototype should be portable and not inflict any harm on the user. The necessary theoretical research is thoroughly conducted followed by the construction of the final prototype. The purpose of the project is achieved, resulting i
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Henderson, Gregory Clark. "Pneumatically-powered robotic exoskeleton to exercise specific lower extremity muscle groups in humans." Thesis, Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/47624.

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A control method is proposed for exercising specific muscles of a human's lower body. This is accomplished using an exoskeleton that imposes active force feedback control. The proposed method involves a combined dynamic model of the musculoskeletal system of the lower-body with the dynamics of pneumatic actuators. The exoskeleton is designed to allow for individual control of mono-articular or bi-articular muscles to be exercised while not inhibiting the subject's range of motion. The control method has been implemented in a 1-Degree of Freedom (DOF) exoskeleton that is designed to resist the
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Mooney, Luke Matthewson. "Autonomous powered exoskeleton to improve the efficiency of human walking." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/103482.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2016.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 141-145).<br>For over a century, technologists have strived to develop autonomous leg exoskeletons that reduce the metabolic energy consumed when humans walk and run, but such technologies have traditionally remained unachievable. In this thesis, I present the Augmentation Factor, a simple model that predicts the metabolic impact of lower limb exoskeletons during walking. The Augmentation Factor balances the be
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Briner, Hazel (Hazel Linn). "Design, prototyping and preliminary testing of an elastic-powered climbing exoskeleton." Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/69504.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2011.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 24).<br>Human powered elastic mechanisms can be used to reduce work requirements of muscles, by storing and releasing energy to more evenly distribute work load. An exoskeleton was designed to delay human fatigue during rock climbing. This exoskeleton stores energy in the less intensive motion, extension while reaching upwards, and uses the stored energy in the more intensive motion, flexion during upwards ascent. A cuf
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Fournier, Brandon. "Model and Characterization of a Passive Biomimetic Ankle for Lower Extremity Powered Exoskeleton." Thesis, Université d'Ottawa / University of Ottawa, 2018. http://hdl.handle.net/10393/37373.

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Lower extremity powered exoskeletons (LEPE) allow people with spinal cord injury (SCI) to perform activities of daily living, such as standing, walking, or stair and ramp ascent/descent. However, current LEPE walk slowly and require extensive use of forearm crutches to maintain user stability. Consequently, this limits LEPE time of use and overall system performance. While the biological ankle is known to be critical for energy efficiency, speed, and stability in able-bodied walking, current LEPE do not include biomimetic ankle designs and thus limit device performance. The objective of this
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Abolfathi, Peter Puya. "Development of an Instrumented and Powered Exoskeleton for the Rehabilitation of the Hand." Thesis, The University of Sydney, 2008. http://hdl.handle.net/2123/3690.

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With improvements in actuation technology and sensory systems, it is becoming increasingly feasible to create powered exoskeletal garments that can assist with the movement of human limbs. This class of robotics referred to as human-machine interfaces will one day be used for the rehabilitation of paralysed, damaged or weak upper and lower extremities. The focus of this project was the development of an exoskeletal interface for the rehabilitation of the hands. A novel sensor was designed for use in such a device. The sensor uses simple optical mechanisms centred on a spring to measure force a
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Abolfathi, Peter Puya. "Development of an Instrumented and Powered Exoskeleton for the Rehabilitation of the Hand." University of Sydney, 2008. http://hdl.handle.net/2123/3690.

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Doctor of Philosophy (PhD)<br>With improvements in actuation technology and sensory systems, it is becoming increasingly feasible to create powered exoskeletal garments that can assist with the movement of human limbs. This class of robotics referred to as human-machine interfaces will one day be used for the rehabilitation of paralysed, damaged or weak upper and lower extremities. The focus of this project was the development of an exoskeletal interface for the rehabilitation of the hands. A novel sensor was designed for use in such a device. The sensor uses simple optical mechanisms centred
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Heebner, Maryellen. "Comparison of Different Transmission Approaches to Optimize Exoskeleton Efficiency." Case Western Reserve University School of Graduate Studies / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=case1576609767744357.

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Tomeček, Michal. "Konstrukční návrh hydraulického systému robotického exoskeletonu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-449718.

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The main goal of this diploma thesis is to design a hydraulic system for robotic exoskeleton actuation. In the first part of the thesis a list of available sources of exoskeleton designs, is presented, followed by a thorough systematic analysis of hydraulic system elements and their use for this application, is made. The second part of the thesis consists of the hydraulic system design, as well the mechanical design for the hydraulic system which is subsequently tested structurally in the Autodesk Inventor software. The last part of the thesis consists of risk analysis and critical evaluation
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Perry, Joel C. "Design and development of a 7 degree-of-freedom powered exoskeleton for the upper limb /." Thesis, Connect to this title online; UW restricted, 2006. http://hdl.handle.net/1773/7077.

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Book chapters on the topic "Powered Exoskeleton"

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Lee, Kyuhwa, Dong Liu, Laetitia Perroud, Ricardo Chavarriaga, and José del R. Millán. "Endogenous Control of Powered Lower-Limb Exoskeleton." In Biosystems & Biorobotics, 115–19. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-46532-6_19.

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Fleischer, Christian, and Günter Hommel. "Embedded Control System for a Powered Leg Exoskeleton." In Embedded Systems – Modeling, Technology, and Applications, 177–85. Dordrecht: Springer Netherlands, 2006. http://dx.doi.org/10.1007/1-4020-4933-1_19.

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Ramanujam, A., A. Spungen, P. Asselin, E. Garbarini, J. Augustine, S. Canton, P. Barrance, and G. F. Forrest. "Training Response to Longitudinal Powered Exoskeleton Training for SCI." In Biosystems & Biorobotics, 361–66. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-46532-6_59.

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Somisetti, Kiran. "Design and Fabrication of Pneumatic-Powered Upper Body Exoskeleton." In Algorithms for Intelligent Systems, 375–83. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-4893-6_33.

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Mikulski, Michał A. "Single DOF Powered Exoskeleton Control System, Algorithms and Signal Processing." In Advanced Technologies for Intelligent Systems of National Border Security, 45–55. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-31665-4_4.

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Yuan, Xiaoqing, Jiakun Zhang, Fujun Fang, Wendong Wang, Huimin Su, and Yaqing Xu. "Design of a Hybrid-Drive Upper Limb Powered Exoskeleton Robot." In Advances in Mechanical Design, 1523–36. Singapore: Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-7381-8_93.

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Toxiri, Stefano, Jesús Ortiz, Jawad Masood, Jorge Fernández, Luis A. Mateos, and Darwin G. Caldwell. "A Powered Low-Back Exoskeleton for Industrial Handling: Considerations on Controls." In Biosystems & Biorobotics, 287–91. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-46532-6_47.

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Quan, Junyu, Hongwei Liu, Guodong Yan, Hao Li, and Zhe Zhao. "An IMU Based Real-Time Monitoring System for Powered Robotic Knee Exoskeleton." In Lecture Notes in Electrical Engineering, 269–77. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-6324-6_28.

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Arijit, Abhishek, Dilip Kumar Pratihar, and Rathindranath Maiti. "Study on Inverse Dynamics of Full-Body Powered Pseudo-Anthropomorphic Exoskeleton Using Neural Networks." In Hybrid Intelligent Systems, 295–305. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-27221-4_25.

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Russo, Debora, Emilia Ambrosini, Stefano Arrigoni, Francesco Braghin, and Alessandra Pedrocchi. "Design and Modeling of a Joystick Control Scheme for an Upper Limb Powered Exoskeleton." In XIV Mediterranean Conference on Medical and Biological Engineering and Computing 2016, 649–52. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-32703-7_125.

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Conference papers on the topic "Powered Exoskeleton"

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King, Katelyn, Sarah Gonzalez, and Leia Stirling. "Assessing the Effect of a Powered Ankle Exoskeleton on Human Agility with Inertial Measurement Units." In 13th International Conference on Applied Human Factors and Ergonomics (AHFE 2022). AHFE International, 2022. http://dx.doi.org/10.54941/ahfe1001476.

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Human agility describes the capacity to quickly adjust body movements in response to the environment. This study quantifies agility through performance on 0º, 45º, 90º, and 180º turns on an outdoor agility course. Participants (n=17) walked the course while wearing an ankle exoskeleton in powered and unpowered states, and their own shoes before and after the exoskeleton trials. Agility was quantified using Inertial Measurement Units placed on the feet. All metrics varied significantly with turn type and exhibited larger effect sizes than with changes in condition. Stride duration moderately in
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Tung, Wayne Yi-Wei, Michael McKinley, Minerva V. Pillai, Jason Reid, and Homayoon Kazerooni. "Design of a Minimally Actuated Medical Exoskeleton With Mechanical Swing-Phase Gait Generation and Sit-Stand Assistance." In ASME 2013 Dynamic Systems and Control Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/dscc2013-4038.

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Lower-extremity powered exoskeletons have traditionally used four to ten powered degrees of freedom to provide gait assistance for individuals with spinal cord injury (SCI). Systems with numerous high-impedance powered degrees of freedom commonly suffer from cumbersome walking dynamics and decreased utility due to added weight and increased control complexity. We propose a new approach to powered exoskeleton design that minimizes actuation and control complexity by embedding intelligence into the hardware. This paper describes a minimalistic system that uses a single motor for each exoskeleton
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Brown, Emily, Yusra Farhat Ullah, Kimberly Gustafson, and William Durfee. "Preliminary Design of Musclae-Powered Exoskeleton for Users with Spinal Cord Injury." In 2022 Design of Medical Devices Conference. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/dmd2022-1013.

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Abstract The exercise methods available to individuals with spinal cord injuries are limited, increasing their risk of pressure sores, muscle atrophy, diminished bone strength, and diminished blood flow efficiency. The FES Energy Storing Exoskeleton combines the simplicity of a passive exoskeleton with functional electrical stimulation of the quadriceps muscles, enabling the user to stand and walk using their own muscles. To reduce muscle fatigue, the initial energy supplied by FES is supplemented by gas springs for energy storage and bidirectional clutch mechanisms for joint locking and contr
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Naik, Prabhakar, Jayant Unde, Bhushan Darekar, and S. S. Ohol. "Pneumatic Artificial Muscle Powered Exoskeleton." In AIR 2019: Advances in Robotics 2019. New York, NY, USA: ACM, 2019. http://dx.doi.org/10.1145/3352593.3352627.

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Paredes, Victor, and Ayonga Hereid. "Dynamic Locomotion of a Lower-Limb Exoskeleton Through Virtual Constraints Based ZMP Regulation." In ASME 2020 Dynamic Systems and Control Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/dscc2020-3170.

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Abstract Robotic lower-limb exoskeletons have the potentials to assist individuals with paraplegia to perform normal ambulatory functions and to provide exceptional health benefits. While modern-day hardware for exoskeletons is becoming more powerful, there are still significant challenges in implementing a practical exoskeleton motion control framework that helps paraplegic individuals to complete regular ambulatory tasks stably, safely, and efficiently without the use of arm-crutches. Inspired by the current development in dynamic walking controllers for a bipedal robot, this paper proposes
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Jeong, Yoon Jung, and Homayoon Kazerooni. "Design of Low Profile Actuators for Medical Exoskeletons." In ASME 2015 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/imece2015-53182.

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Lower extremity exoskeletons augment ability of walking, sitting and standing upright with a pair of robotic legs that ambulates the user with mobility disorder. As a mobility aid, being lightweight and compact can highly increase usability by allowing users to navigate through narrow passages. This paper summarizes the design of low profile actuators designed for minimally actuated exoskeleton, a lightweight and low profile powered medical exoskeleton developed in Robotics and Human Engineering Laboratory at UC Berkeley. An analytical method for designing low profile BLDC actuation units, cri
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Ekkelenkamp, R., J. Veneman, and H. van der Kooij. "LOPES: a lower extremity powered exoskeleton." In 2007 IEEE International Conference on Robotics and Automation. IEEE, 2007. http://dx.doi.org/10.1109/robot.2007.363952.

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Zoss, Adam, and H. Kazerooni. "Architecture and Hydraulics of a Lower Extremity Exoskeleton." In ASME 2005 International Mechanical Engineering Congress and Exposition. ASMEDC, 2005. http://dx.doi.org/10.1115/imece2005-80129.

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Wheeled vehicles are often incapable of transporting heavy materials over rough terrain or up staircases. Lower extremity exoskeletons supplement human intelligence with the strength and endurance of a pair of wearable robotic legs that support a payload. This paper summarizes the design and analysis of the Berkeley Lower Extremity Exoskeleton (BLEEX). The anthropomorphically-based BLEEX has seven degrees of freedom per leg, four of which are powered by linear hydraulic actuators. The selection of the degrees of freedom, critical hardware design aspects, and initial performance measurements of
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Pawar, Manthan V., S. S. Ohol, and Ashutosh Patil. "Modelling and Development of Compressed Air Powered Human Exoskeleton Suit Human Exoskeleton." In 2018 7th International Conference on Reliability, Infocom Technologies and Optimization (Trends and Future Directions) (ICRITO). IEEE, 2018. http://dx.doi.org/10.1109/icrito.2018.8748797.

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Song, Guangkui, Rui Huang, Zhinan Peng, Kecheng Shi, Long Zhang, Rong He, Jing Qiu, Huayi Zhan, and Hong Cheng. "Human-exoskeleton Cooperative Balance Strategy for a Human-powered Augmentation Lower Exoskeleton." In 2022 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS). IEEE, 2022. http://dx.doi.org/10.1109/iros47612.2022.9981568.

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Reports on the topic "Powered Exoskeleton"

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Goldfarb, Michael. A Monopropellant-Powered Actuator for the Development of a Lower Limb Exoskeleton. Fort Belvoir, VA: Defense Technical Information Center, April 2001. http://dx.doi.org/10.21236/ada413914.

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