Academic literature on the topic 'Human leg swing'

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Journal articles on the topic "Human leg swing"

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Blum, Y., S. W. Lipfert, J. Rummel, and A. Seyfarth. "Swing leg control in human running." Bioinspiration & Biomimetics 5, no. 2 (2010): 026006. http://dx.doi.org/10.1088/1748-3182/5/2/026006.

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Riky, Tri Yunardi, Akbar Firdausi Aji, and Inaiyah Agustin Eva. "Robotic Leg Design to Analysis the Human Leg Swing from Motion Capture." Bulletin of Electrical Engineering and Informatics 6, no. 3 (2017): 256–64. https://doi.org/10.11591/eei.v6i3.645.

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In this paper presented the prototype of robotic leg has been designed, constructed and controlled. These prototype are designed from a geometric of human leg model with three joints moving in 2D plane. Robot has three degree of freedom using DC servo motor as a joint actuators: hip, knee and ankle. The mechanical leg constructed using aluminum alloy and acrylic material. The control movement of this system is based on motion capture data stored on a personal computer. The motions are recorded with a camera by use of a marker-based to track movement of human leg. Propose of this paper is desig
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Umberger, Brian R. "Stance and swing phase costs in human walking." Journal of The Royal Society Interface 7, no. 50 (2010): 1329–40. http://dx.doi.org/10.1098/rsif.2010.0084.

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Leg swing in human walking has historically been viewed as a passive motion with little metabolic cost. Recent estimates of leg swing costs are equivocal, covering a range from 10 to 33 per cent of the net cost of walking. There has also been a debate as to whether the periods of double-limb support during the stance phase dominate the cost of walking. Part of this uncertainty is because of our inability to measure metabolic energy consumption in individual muscles during locomotion. Therefore, the purpose of this study was to investigate the metabolic cost of walking using a modelling approac
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Ali, Hazem I., and Azhar J. Abdulridha. "State Feedback Sliding Mode Controller Design for Human Swing Leg System." Al-Nahrain Journal for Engineering Sciences 21, no. 1 (2018): 51. http://dx.doi.org/10.29194/njes21010051.

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In this paper, the robustness properties of sliding mode control (SMC) which is designed to produce a dynamic output feedback controller to achieve robustness for trajectory tracking of the nonlinear human swing leg system is presented. The human swing leg represents the support of human leg or the humanoid robot leg which is usually modeled as a double pendulum. The thigh and shank of a human leg will respect the pendulum links, hip and knee will connect the upper body to thigh and then shank respectively. The total moments required to move the muscles of thigh and shank are denoted by two ex
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Yunardi, Riky Tri, Aji Akbar Firdaus, and Eva Inaiyah Agustin. "Robotic Leg Design to Analysis the Human Leg Swing from Motion Capture." Bulletin of Electrical Engineering and Informatics 6, no. 3 (2017): 256–64. http://dx.doi.org/10.11591/eei.v6i3.645.

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In this paper presented the prototype of robotic leg has been designed, constructed and controlled. These prototype are designed from a geometric of human leg model with three joints moving in 2D plane. Robot has three degree of freedom using DC servo motor as a joint actuators: hip, knee and ankle. The mechanical leg constructed using aluminum alloy and acrylic material. The control movement of this system is based on motion capture data stored on a personal computer. The motions are recorded with a camera by use of a marker-based to track movement of human leg. Propose of this paper is desig
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Rankin, Bradford L., Stephanie K. Buffo, and Jesse C. Dean. "A neuromechanical strategy for mediolateral foot placement in walking humans." Journal of Neurophysiology 112, no. 2 (2014): 374–83. http://dx.doi.org/10.1152/jn.00138.2014.

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Stability is an important concern during human walking and can limit mobility in clinical populations. Mediolateral stability can be efficiently controlled through appropriate foot placement, although the underlying neuromechanical strategy is unclear. We hypothesized that humans control mediolateral foot placement through swing leg muscle activity, basing this control on the mechanical state of the contralateral stance leg. Participants walked under Unperturbed and Perturbed conditions, in which foot placement was intermittently perturbed by moving the right leg medially or laterally during t
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Ali, Hazem I., and Azhar Jabbar Abdulridha. "H-infinity Sliding Mode Controller Design for a Human Swing Leg System." Al-Nahrain Journal for Engineering Sciences 23, no. 2 (2020): 117–26. http://dx.doi.org/10.29194/njes.23020117.

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In this paper, the H-infinity Sliding Mode Control (HSMC) is designed to produce a new dynamic output feedback controller for trajectory tracking of the nonlinear human swing leg system. The human swing leg system represents the support of human leg or the humanoid robot leg which is usually modeled as a double pendulum. The thigh and shank of a human leg is represented by two pendulum links and the hip joint will connect the upper body to the thigh and the knee joint will connect the thigh to the shank. The external torques (servo motors) are applied at the hip and knee joints to move the mus
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Roden-Reynolds, Devin C., Megan H. Walker, Camille R. Wasserman, and Jesse C. Dean. "Hip proprioceptive feedback influences the control of mediolateral stability during human walking." Journal of Neurophysiology 114, no. 4 (2015): 2220–29. http://dx.doi.org/10.1152/jn.00551.2015.

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Active control of the mediolateral location of the feet is an important component of a stable bipedal walking pattern, although the roles of sensory feedback in this process are unclear. In the present experiments, we tested whether hip abductor proprioception influenced the control of mediolateral gait motion. Participants performed a series of quiet standing and treadmill walking trials. In some trials, 80-Hz vibration was applied intermittently over the right gluteus medius (GM) to evoke artificial proprioceptive feedback. During walking, the GM was vibrated during either right leg stance (
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Bazargan-Lari, Yousef, Mohammad Eghtesad, Ahmad R. Khoogar, and Alireza Mohammad-Zadeh. "ADAPTIVE NEURAL NETWORK CONTROL OF A HUMAN SWING LEG AS A DOUBLE-PENDULUM CONSIDERING SELF-IMPACT JOINT CONSTRAINT." Transactions of the Canadian Society for Mechanical Engineering 39, no. 2 (2015): 201–19. http://dx.doi.org/10.1139/tcsme-2015-0015.

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For human walking, the swing leg is usually modeled as a double pendulum. Considering a joint self-impact constraint at the knee joint of the double pendulum model is the main difference in this study. The primary objective of this research is to propose a nonlinear Adaptive Neural Network (ANN) for this system. By using Gaussian RBF networks, asymptotically stable tracking is attained. We will use the available data of normal human walking for the desired trajectories of the hip and knee joints. By simulation of the system, we perceive that the swing leg tracks the normal human gait with a ne
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Chu, Virginia W. T., T. George Hornby, and Brian D. Schmit. "Stepping responses to treadmill perturbations vary with severity of motor deficits in human SCI." Journal of Neurophysiology 120, no. 2 (2018): 497–508. http://dx.doi.org/10.1152/jn.00486.2017.

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In this study, we investigated the responses to tread perturbations during human stepping on a treadmill. Our approach was to test the effects of perturbations to a single leg using a split-belt treadmill in healthy participants and in participants with varying severity of spinal cord injury (SCI). We recruited 11 people with incomplete SCI and 5 noninjured participants. As participants walked on an instrumented treadmill, the belt on one side was stopped or accelerated briefly during midstance to late stance. A majority of participants initiated an unnecessary swing when the treadmill was sto
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Dissertations / Theses on the topic "Human leg swing"

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Ylli, Klevis [Verfasser], Yiannos [Akademischer Betreuer] Manoli, and Ulrike [Akademischer Betreuer] Wallrabe. "Energy harvesting from the swing motion of the human leg." Freiburg : Universität, 2019. http://d-nb.info/1177679337/34.

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Dong, Raymond Patrick. "Energetics of Human Leg-swing: Various Cost Models, Optimal Motions, and Fits to Experiments." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1291161175.

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Books on the topic "Human leg swing"

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Piper, Ross. Extinct Animals. Greenwood Publishing Group, Inc., 2009. http://dx.doi.org/10.5040/9798400649219.

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Everyone is familiar with the dodo and the wooly mammoth, but how many people have heard of the scimitar cat and the Falkland Island fox? Extinct Animals portrays over 60 remarkable animals that have been lost forever during the relatively recent geological past. Each entry provides a concise discussion of the history of the animal—how and where it lived, and how it became extinct—as well as the scientific discovery and analysis of the creature. In addition, this work examines what led to extinction—from the role of cyclical swings in the Earth's climate to the spread of humans and their activ
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Book chapters on the topic "Human leg swing"

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Braune, Wilhelm, and Otto Fischer. "Kinematics of the Swing of the Leg." In The Human Gait. Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-642-70326-3_5.

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Sartori Massimo, Chemello Gaetano, Reggiani Monica, and Pagello Enrico. "Control of a Virtual Leg via EMG Signals from Four Thigh Muscles." In Intelligent Autonomous Systems 10. IOS Press, 2008. https://doi.org/10.3233/978-1-58603-887-8-137.

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The work presented in this paper is our first step toward the development of an exoskeleton for human gait support. The device we foresee should be suitable for assisting walking in paralyzed subjects and should be based on myoelectrical muscular signals (EMGs) as a communication channel between the human and the machine. This paper concentrates on the design of a biomechanical model of the human lower extremity. The system predicts subject's intentions from the analysis of his/her electromyographical activity. Our model takes into account three main factors. Firstly, the main muscles spanning
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Fleischmann, Larissa. "Veterinary Fencing in Eastern Germany: The More-Than-Human Borderlands of African Swine Fever." In Fences and Biosecurity: The Politics of Governing Unruly Nature. Helsinki University Press, 2025. https://doi.org/10.33134/hup-30-3.

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This chapter analyses how veterinary fencing – the erection of material barriers aiming to stop the spreading of animal disease – became a central governmental practice in the eastern German borderlands with Poland. During an acute outbreak of African swine fever (ASF) from September 2020 onwards, German authorities were under increasing pressure to restore the disease-free status of the country and consequently lift the export restrictions placed on German pig farmers. This led to the proliferation of a continuously expanding network of material barriers in the German borderlands. Drawing on
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Ahlskog, J. Eric. "A Primer on the Brain." In The Parkinson’s Disease Treatment Book. Oxford University PressNew York, NY, 2005. http://dx.doi.org/10.1093/oso/9780195171938.003.0002.

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Abstract A text on Parkinson’s disease (PD), a disorder of the brain, should start with a discussion of the brain, an incredibly complex organ. Not only is brain structure complicated, but so is human thought and action. How amazing that the human brain can derive complex mathematical equations, compose great novels, and direct the swing of a baseball bat toward a curving baseball thrown at ninety miles per hour! Although we are not close to understanding how the brain mediates the genius of a mathematician or the artistry of a composer, we do understand many elementary things about brain func
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Whitfield, Keith E., and Dwayne T. Brandon. "Cultural Aspects of Quantitative Genetic Investigations." In Oxford Handbook of Methods in Positive Psychology. Oxford University PressNew York, NY, 2006. http://dx.doi.org/10.1093/oso/9780195172188.003.0019.

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Abstract The fields of quantitative genetics, adult development, and aging as well as cultural psychology often draw from perspectives in positive psychology to explain phenomena within their disciplines. The discussion in this chapter is on using positive psychology perspectives to further elucidate the complicated relationships found in the integration of adult development and aging research with cultural psychology, using a quantitative genetic approach to examine individual differences. Social scientists have long been engaged in an epic search for the sources of individual variation in th
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Badar, Mohammad Sufian, Umme Hania Irfan, Zaid Hussain Siddique, et al. "History of Coronaviruses." In COVID-19: Causes, Transmission, Diagnosis, and Treatment. BENTHAM SCIENCE PUBLISHERS, 2024. http://dx.doi.org/10.2174/9789815256536124010003.

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Over the past two decades, coronavirus-associated diseases such as SARS and MERS have challenged the public health systems globally. Around 2002-2003, a near-pandemic of a previously unknown β-coronavirus, named SARS-CoV, arose in China and 29 other countries. Not much attention was paid to it post-disappearance of this outbreak. An understanding of the coronavirus began only after alarming predictions of the virus’s re-emergence began in 2007. Identification from previous studies revealed that bats have proven to be a major reservoir of animal coronavirus. SARS-related bat coronaviruses have
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Scott, Wendy E. "Obstetrics." In Consent, Benefit, and Risk in Anaesthetic Practice. Oxford University PressOxford, 2009. http://dx.doi.org/10.1093/oso/9780199296873.003.0003.

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Abstract Pregnancy is a physiological process. In some instances, it may, however, become a pathological state. Women may choose to conceive, carry the child to term, and deliver the child. Accidental or forced conception, a wanted embryo that develops with an abnormality, or a woman’s change of mind, may result in a termination of that pregnancy. Women have opportunities from conception onwards, to exercise their right to continue with the pregnancy, or to have it terminated—within the legal restriction of the Abortion Act(1)and the Human Fertilization and Embryology Act 1990(2). Women themse
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Lienhard, John H. "Taking Flight." In The Engines of Our Ingenuity. Oxford University Press, 2000. http://dx.doi.org/10.1093/oso/9780195135831.003.0010.

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The recurring fantasies of my childhood were dreams of flight. I doubt I differed from other children in my imaginings, and in my childish way I seriously tried to achieve flight. I jumped from the garage roof into snowbanks. I scaled trees and cliffs. I swung on ropes. It’s a good thing my mother never learned just how hard I worked at leaving the earth. Sprained ankles and bruised ribs eventually convinced me that my body was earthbound even if my mind was not. I turned to model airplanes. I lived inside those lovely, light, buoyant structures. They carried me with them into the sky. My inne
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Conference papers on the topic "Human leg swing"

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POGGENSEE, K. L., M. A. SHARBAFI, and A. SEYFARTH. "CHARACTERIZING SWING-LEG RETRACTION IN HUMAN LOCOMOTION." In 17th International Conference on Climbing and Walking Robots and the Support Technologies for Mobile Machines. WORLD SCIENTIFIC, 2014. http://dx.doi.org/10.1142/9789814623353_0044.

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ZHAO, GUOPING, and ANDRE SEYFARTH. "CONTRIBUTIONS OF STANCE AND SWING LEG MOVEMENTS TO HUMAN WALKING DYNAMICS." In CLAWAR 2015: 18th International Conference on Climbing and Walking Robots and the Support Technologies for Mobile Machines. WORLD SCIENTIFIC, 2015. http://dx.doi.org/10.1142/9789814725248_0030.

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Ali, Hazem I., and Mustafa J. Kadhim. "Mixed H2/Sliding Mode Controller Design for Human Swing Leg System." In 2018 Third Scientific Conference of Electrical Engineering (SCEE). IEEE, 2018. http://dx.doi.org/10.1109/scee.2018.8684215.

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Reid, Jason I., Michael McKinley, Wayne Tung, Minerva Pillai, and H. Kazerooni. "A Method of Swing Leg Control for a Minimally Actuated Medical Exoskeleton for Individuals With Paralysis." In ASME 2013 Dynamic Systems and Control Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/dscc2013-4057.

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This paper discusses the control of a medical exoskeleton swing leg that has a “passive” (unactuated) knee. Previous work in legged locomotion has demonstrated the feasibility of achieving natural, energy efficient walking with minimally actuated robotic systems. This work will present early results for a medical exoskeleton that only has actuation that powers the flexion and extension of the biological hip. In this work, a hybrid model of the state dependent kinematics and dynamics of the swing leg will be developed and parameterized to yield swing hip dynamics as a function of desired knee f
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Wang, Yang, and Manoj Srinivasan. "System Identification and Stability Analysis of Steady Human Walking and the Swing Leg Dynamics." In ASME 2012 5th Annual Dynamic Systems and Control Conference joint with the JSME 2012 11th Motion and Vibration Conference. ASME, 2012. http://dx.doi.org/10.1115/dscc2012-movic2012-8663.

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Cherry, Michael S., Sridhar Kota, and Daniel P. Ferris. "An Elastic Exoskeleton for Assisting Human Running." In ASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/detc2009-87355.

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This paper presents the design and preliminary evaluation of an elastic lower-body exoskeleton (eExo). Human legs behave in a spring-like fashion while running. We selected a design that relied solely on material elasticity to store and release energy during the stance phase of running. The exoskeleton included a novel knee joint with a cam and a Bowden cable transferring energy to and from a waist-mounted extension spring. We used a friction-lock clutch controlled by hip angle via a pneumatic cylinder to release the cable during swing phase for free movement of the leg. The design also incorp
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Huang, Lihua, Ryan Ryan Steger, and H. Kazerooni. "Hybrid Control of the Berkeley Lower Extremity Exoskeleton (BLEEX)." In ASME 2005 International Mechanical Engineering Congress and Exposition. ASMEDC, 2005. http://dx.doi.org/10.1115/imece2005-80109.

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The first functional load-carrying and energetically autonomous exoskeleton was demonstrated at U.C. Berkeley, walking at the average speed of 0.9 m/s (2 mph) while carrying a 34 kg (75 lb) payload. The original BLEEX sensitivity amplification controller, based on positive feedback, was designed to increase the closed loop system sensitivity to its wearer’s forces and torques without any direct measurement from the wearer. The controller was successful at allowing natural and unobstructed load support for the pilot. This article presents an improved control scheme we call “mixed” control that
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Echeveste, Salvador, and Ernesto Hernandez Hinojosa. "Optimal Swing Assistance Using a Hip Exoskeleton: Comparing Simulations With Hardware Implementation." In ASME 2023 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2023. http://dx.doi.org/10.1115/detc2023-117126.

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Abstract Despite tremendous potential, predictive simulations for exoskeleton control tend to overpromise the performance of assistance on walking. The transition from simulation to hardware faces several hurdles such as difficulty representing human-machine interface, an overreliance on intuition, and a lack of exploration in assistive strategies. This work presents a simulation-to-hardware strategy that creates optimized assistance profiles to implement on a hip exoskeleton to assist leg swinging as an intermediary step to improve control strategies for walking. By simplifying the activity w
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Mojaddarasil, Marzieh, and Mohammad Jafar Sadigh. "Joint Impact Forces of a Biped Walking on an Uneven Ground." In ASME 2014 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/imece2014-38293.

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This paper looks into the impact forces applied to the joints of a biped walking on an uneven surface. In this vein, impact dynamics of the swing leg are studied by considering a simple two-link planar manipulator model which comes in contact with the ground. The effect of different parameters and factors on the magnitude of the joint impact forces is investigated. Specifically, it is observed how the elasticity of the shoe, the leg configuration, and the muscular flexibility of the joints affect the joint impact forces. The obtained results can be of practical importance in developing bipedal
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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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