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Smart Data-Driven Optimization of Powered Prosthetic Ankles Using Surface Electromyography
2018
Sensors
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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]
2022
arXiv
pre-print
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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
2017
Frontiers in Neurology
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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
2021
IEEE Access
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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]
2012
EMG Methods for Evaluating Muscle and Nerve Function
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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]
2020
bioRxiv
pre-print
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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
2019
Plastic and Aesthetic Research
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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
2017
Journal of Biomechanical Engineering
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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
2019
IEEE Access
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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]
2019
arXiv
pre-print
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2019 pre-print arXiv:1811.05414v2 fatcat:qic5bknhgvgf3hegll7gtoa6nuOther Versions
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
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, 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
2020
Frontiers in Bioengineering and Biotechnology
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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
2009
Exercise and sport sciences reviews
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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
2015
Journal of NeuroEngineering and Rehabilitation
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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
2016
2016 6th IEEE International Conference on Biomedical Robotics and Biomechatronics (BioRob)
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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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