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Smart Data-Driven Optimization of Powered Prosthetic Ankles Using Surface Electromyography

Roozbeh Atri, J. Marquez, Connie Leung, Masudur Siddiquee, Douglas Murphy, Ashraf Gorgey, William Lovegreen, Ding-Yu Fei, Ou Bai
2018 Sensors  
The advent of powered prosthetic ankles provided more balance and optimal energy expenditure to lower amputee gait.  ...  In this study, a novel evidence-based tuning method was presented using multi-channel electromyogram data from the residual limb, and a model for muscle activity was built.  ...  Related Works Earlier ideas for active prosthetic legs were developed in 1991 by Popovic et al. [9] .  ... 
doi:10.3390/s18082705 pmid:30126112 fatcat:ammofixfevclfhipb3ccgzrbs4

Natural Multicontact Walking for Robotic Assistive Devices via Musculoskeletal Models and Hybrid Zero Dynamics [article]

Kejun Li, Maegan Tucker, Rachel Gehlhar, Yisong Yue, Aaron D. Ames
2022 arXiv   pre-print
Moreover, gaits generated with our framework were strongly preferred by the non-disabled prosthetic users as compared to gaits generated with the nominal HZD method, even with the use of systematic tuning  ...  Provably stable walking gaits can then be generated for this model via the hybrid zero dynamics (HZD) method.  ...  reflected by EMG signals for the i th muscle during the prosthetic walking and ŝ(i) EMG denotes the corresponding muscle activation during normal unassisted walking.  ... 
arXiv:2109.05113v4 fatcat:mrawwlef3bh5zidinco3dcx5em

Electroencephalogram-Based Brain–Computer Interface and Lower-Limb Prosthesis Control: A Case Study

Douglas P. Murphy, Ou Bai, Ashraf S. Gorgey, John Fox, William T. Lovegreen, Brian W. Burkhardt, Roozbeh Atri, Juan S. Marquez, Qi Li, Ding-Yu Fei
2017 Frontiers in Neurology  
After achieving more than 90% reliability for switch activation by EEG rhythm-feedback training, the subject then progressed to activating the knee-unlocking switch on a prosthesis that turned on a motor  ...  and unlocked a prosthetic knee.  ...  PUrPOse OF tHis stUDY The prosthetic control parameters are commonly tuned to optimize level walking.  ... 
doi:10.3389/fneur.2017.00696 pmid:29326653 pmcid:PMC5736540 fatcat:dyvpa76iwbczrb3vbkzsn5t4q4

Advancements, Trends and Future Prospects of Lower Limb Prosthesis

Muhammad Asif, Mohsin Islam Tiwana, Umar Shahbaz Khan, Waqar Shahid Qureshi, Javaid Iqbal, Nasir Rashid, Noman Naseer
2021 IEEE Access  
The invention of authors describes an instrumented prosthetic foot for a controller based leg prosthesis.  ...  Design more real-time controllers giving the reliable results with minimum tuning parameters. 5 Sensors for LLPs IMUs and EMGs are being used mostly.  ...  His name has been included in the directory of productive scientists of Pakistan for the last three years.  ... 
doi:10.1109/access.2021.3086807 fatcat:6jettk7fvvc3dpkzwlr2h7o3ym

Man to Machine, Applications in Electromyography [chapter]

Michael Wehner
2012 EMG Methods for Evaluating Muscle and Nerve Function  
As use spread, techniques for www.intechopen.com EMG Methods for Evaluating Muscle and Nerve Function 428  ...  Surface electromyography (sEMG) provides a convenient and relatively noninvasive avenue for determining muscle activation, particularly as highly portable devices become available.  ...  The Otto Bock C-Leg is a popular active lower extremity prosthetic, making it a prime candidate for EMG based gait research (Orendurff, et al., 2006) .  ... 
doi:10.5772/26495 fatcat:7ypcajmhjnchxh44cfwbtx5tz4

Musculoskeletal Model Personalization Affects Metabolic Cost Estimates for Walking [article]

Marleny Arones, Mohammad S. Shourijeh, Carolynn Patten, Benjamin J. Fregly
2020 bioRxiv   pre-print
The second approach used a personalized EMG-driven musculoskeletal model with personalized functional axes but found muscle activations via static optimization (SOCal).  ...  The third approach used the same personalized EMG-driven model but calculated muscle activations directly from EMG data (EMGCal).  ...  (Fey et al., 2012) developed an optimization to identify an optimal prosthetic 57 foot stiffness to minimize metabolic cost for amputee walking. Miller et al.  ... 
doi:10.1101/2020.08.05.238857 fatcat:da23l74fczdsbpf6nasf3b64mi

Prosthetic and orthotic options for lower extremity amputation and reconstruction

Christopher S. Crowe, Kate A. Impastato, Alex C. Donaghy, Caryn Earl, Janna L. Friedly, Kari A. Keys
2019 Plastic and Aesthetic Research  
Knowledge of available prosthetic and orthotic options is of considerable importance for the reconstructive surgeon tasked with limb salvage or resurfacing an amputated extremity.  ...  Each distinct level has certain inherent prosthetic and orthotic considerations.  ...  The location of amputation and resulting residual length and limb shape help determine function, energy expenditure necessary for ambulation, and prosthetic options for the amputated limb.  ... 
doi:10.20517/2347-9264.2018.70 fatcat:tg4si747bjh5xc7m6r4y6mjuha

The Functional Roles of Muscles, Passive Prostheses, and Powered Prostheses During Sloped Walking in People With a Transtibial Amputation

Nathaniel T. Pickle, Alena M. Grabowski, Jana R. Jeffers, Anne K. Silverman
2017 Journal of Biomechanical Engineering  
Prostheses that actively generate ankle power may help to restore this lost function.  ...  Consistent with our hypothesis, the amputated leg hamstrings generated more power to both legs on uphill slopes in comparison with nonamputees, which may have implications for fatigue or overuse injuries  ...  Nomenclature CI ¼ confidence interval COM ¼ center of mass DOF ¼ degrees-of-freedom EMG ¼ electromyography ES ¼ effect size GRF ¼ ground reaction force TTA ¼ transtibial amputation  ... 
doi:10.1115/1.4037938 pmid:28975280 pmcid:PMC5676650 fatcat:rbmm5ylqonhd5hijyd4fudvrve

A Phase Variable Approach for Improved Rhythmic and Non-Rhythmic Control of a Powered Knee-Ankle Prosthesis

Siavash Rezazadeh, David Quintero, Nikhil Divekar, Emma Reznick, Leslie Gray, Robert D. Gregg
2019 IEEE Access  
Although there has been recent progress in control of multi-joint prosthetic legs for rhythmic tasks such as walking, control of these systems for non-rhythmic motions and general real-world maneuvers  ...  leg.  ...  ACKNOWLEDGMENT The authors would like to thank Christopher Nesler for his help in conducting the experiments.  ... 
doi:10.1109/access.2019.2933614 pmid:31656719 pmcid:PMC6813797 fatcat:pcxrs4iqmnfxlne3s5tigrhgle

A Phase Variable Approach for Improved Rhythmic and Non-Rhythmic Control of a Powered Knee-Ankle Prosthesis [article]

Siavash Rezazadeh, David Quintero, Nikhil Divekar, Emma Reznick, Leslie Gray, Robert D. Gregg
2019 arXiv   pre-print
Although there has been recent progress in control of multi-joint prosthetic legs for rhythmic tasks such as walking, control of these systems for non-rhythmic motions and general real-world maneuvers  ...  leg.  ...  ACKNOWLEDGMENT The authors would like to thank Christopher Nesler for his help in conducting the experiments.  ... 
arXiv:1811.05414v3 fatcat:cknw4hbbsbb5fptzdrm3aa3doe

The neural control of limb movement

1992 IEEE Control Systems  
, improved brain-computer interactions and advanced neuroprosthetics for supporting activities of daily living in these patients.  ...  Billions of neuron with quadrillion connections between them and muscles are responsible for coordinated movements that humans perform routinely.  ...  and hybrid system using PNS interfaces like EMG based control of NP.  ... 
doi:10.1109/37.168814 fatcat:pwdrjhfvvfce7jdtzipqiqccuq

Musculoskeletal Model Personalization Affects Metabolic Cost Estimates for Walking

Marleny M. Arones, Mohammad S. Shourijeh, Carolynn Patten, Benjamin J. Fregly
2020 Frontiers in Bioengineering and Biotechnology  
The second approach used a personalized electromyographic (EMG)-driven musculoskeletal model with personalized functional axes but found muscle activations via static optimization (SOCal).  ...  The third approach used the same personalized EMG-driven model but calculated muscle activations directly from EMG data (EMGCal).  ...  Fey et al. (2012) developed an optimization to identify an optimal prosthetic foot stiffness to minimize metabolic cost for amputee walking.  ... 
doi:10.3389/fbioe.2020.588925 pmid:33324623 pmcid:PMC7725798 fatcat:duojobsvwbdmlhjz2lvdbutmte

Forward dynamics simulations provide insight into muscle mechanical work during human locomotion

Richard R Neptune, Craig P McGowan, Steven A Kautz
2009 Exercise and sport sciences reviews  
multiple levels (muscle fiber, musculotendon, net joint moment, and whole-body work) and an ideal framework to identify limitations with different estimates of muscle work and the resulting implications for  ...  Kotaro Sasaki for his contributions to the more recent simulation work.  ...  For example, orthotic or prosthetic devices can be optimized to minimize metabolic cost during walking or running.  ... 
doi:10.1097/jes.0b013e3181b7ea29 pmid:19955870 pmcid:PMC2789343 fatcat:wfmtfnawzzh7jg7jaosyakbnia

Control strategies for active lower extremity prosthetics and orthotics: a review

Michael R Tucker, Jeremy Olivier, Anna Pagel, Hannes Bleuler, Mohamed Bouri, Olivier Lambercy, José del R Millán, Robert Riener, Heike Vallery, Roger Gassert
2015 Journal of NeuroEngineering and Rehabilitation  
This work reviews the state-of-the-art techniques for controlling portable active lower limb prosthetic and orthotic (P/O) devices in the context of locomotive activities of daily living (ADL), and considers  ...  Active and passive safety mechanisms are considered to be central aspects underlying all of P/O design and control, and are shown to be critical for regulatory approval of such devices for real-world use  ...  A further optimization for the controller may be the energy efficiency of operation.  ... 
doi:10.1186/1743-0003-12-1 pmid:25557982 pmcid:PMC4326520 fatcat:hqtl3b2hcfho3b2cvhw52r72wu

Effects of a neuromuscular controller on a powered ankle exoskeleton during human walking

Florin Dzeladini, Amy R. Wu, Daniel Renjewski, Arash Arami, Etienne Burdet, Edwin van Asseldonk, Herman van der Kooij, Auke J. Ijspeert
2016 2016 6th IEEE International Conference on Biomedical Robotics and Biomechatronics (BioRob)  
Reductions in tibialis anterior and soleus activity were observed, suggesting the controller could be suitable, in future work, for augmenting or replacing normal walking functions.  ...  To design such a controller, we investigated a bio-inspired walking controller for orthoses and prostheses.  ...  The authors thank Annerieke Nijman and Gijs van Oort of University of Twente for their help in conducting this study.  ... 
doi:10.1109/biorob.2016.7523694 dblp:conf/biorob/DzeladiniWRABAK16 fatcat:vayo3tyyzfhzxnfo3jfud4bcmm
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