Cited by 29Prosthetics and Rehabilitation RoboticsMuscle activation and electromyography studiesEEG and Brain-Computer Interfaces

Whole body awareness for controlling a robotic transfemoral prosthesis

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Abstract

Restoring locomotion functionality of transfemoral amputees is essential for early rehabilitation treatment and for preserving mobility and independence in daily life. Research in wearable robotics fostered the development of innovative active mechatronic lower-limb prostheses designed with the goal to reduce the cognitive and physical effort of lower-limb amputees in rehabilitation and daily life activities. To ensure benefits to the users, active mechatronic prostheses are expected to be aware of the user intention and properly interact in a closed human-in-the-loop paradigm. In the state of the art various cognitive interfaces have been proposed to online decode the user's intention. Electromyography in combination with mechanical sensing such as inertial or pressure sensors is a widely adopted solution for driving active mechatronic prostheses. In this framework, researchers also explored targeted muscles re-innervation for an objective-oriented surgical amputation promoting wider usability of active prostheses. However, information kept by the neural component of the cognitive interface deteriorates in a prolonged use scenario due to electrodes-related issues, thereby undermining the correct functionality of the active prosthesis. The objective of this work is to present a novel controller for an active transfemoral prosthesis based on whole body awareness relying on a wireless distributed non-invasive sensory apparatus acting as cognitive interface. A finite-state machine controller based on signals monitored from the wearable interface performs subject-independent intention detection of functional tasks such as ground level walking, stair ascent, and sit-to-stand maneuvres and their main sub-phases. Experimental activities carried out with four transfemoral amputees (among them one dysvascular) demonstrated high reliability of the controller capable of providing 100% accuracy rate in treadmill walking even for weak subjects and low walking speeds. The minimum success rate was of 94.8% in performing sit-to-stand tasks. All the participants showed high confidence in using the transfemoral active prosthesis even without training period thanks to intuitiveness of the whole body awareness controller.

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Crossref · 10.3389/fnbot.2017.00025

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  • Developments in volitional motor control have outpaced advancements in sensory feedback for better control of prosthetic arms.

    “The developments in volitional motor control have outpaced the advancements in sensory feedback for better control of prosthetic arms (Parri et al., 2017).”

    From Selectivity and Longevity of Peripheral-Nerve and Machine Interfaces: A Review. (2017) · cites this paper as Parri et al., 2017

    The Introduction discusses intention detection and sensor-based control for lower-limb prostheses, while the Discussions and conclusions address the performance of a transfemoral prosthesis controller. A search for sensory feedback, prosthetic arms, and a comparison of their progress with volitional motor control found no passage addressing the cited claim. No page numbers are available in our copy. (LLM, conf=0.76)

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Research works printed but not linked: 4

  1. Beravs, 2011, Development and validation of a wearable inertial measurement system for use with lower limb exoskeletons, 212
  2. Ceseracciu, 2010, SVM classification of locomotion modes using surface electromyography for applications in rehabilitation robotics, 165
  3. Flynn, CYBERLEGs Beta-Prosthesis active knee system, 410
  4. Varol, 2007, Real-time intent recognition for a powered knee and ankle transfemoral prosthesis, 16

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Authors
Parri, A., Martini, E., Geeroms, J., Flynn, L., Pasquini, G., Crea, S., Molino Lova, R., Lefeber, D., Kamnik, R., Munih, M., & Vitiello, N.
Affiliations
  • Scuola Superiore Sant'Anna (IT)
  • Vrije Universiteit Brussel (BE)
  • Don Carlo Gnocchi Foundation (IT)
  • University of Ljubljana (SI)
Corresponding author
Parri, Andrea
Venue
Frontiers in Neurorobotics
Published
2017-05-30
Volume
11
Pages
25-25
ISSN
1662-5218 (ISSN-L)
OpenAlex
W2618961157
Cited by
29
References
35
Citations by year
2025: 2 · 2024: 1 · 2023: 3 · 2022: 3 · 2021: 4 · 2020: 8 · 2019: 2 · 2018: 5 · 2017: 1
FWCI
1.97
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Frontiers in Neurorobotics (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • VUBIR (Vrije Universiteit Brussel) (submittedVersion)
  • CINECA IRIS Institutional Research Information System (Sant'Anna School of Advanced Studies) (submittedVersion)
Funders
  • Seventh Framework Programme (FP7-ICT-2011-2.1 CYBERLEGs - Grant Agreement #287894)
  • Horizon 2020 (H2020-ICT-2016-1 CYBERLEGs PlusPlus - Grant Agreement #731931)
Topics
  • Physical Sciences › Engineering › Biomedical Engineering › Prosthetics and Rehabilitation Robotics
  • Physical Sciences › Engineering › Biomedical Engineering › Muscle activation and electromyography studies
  • Life Sciences › Neuroscience › Cognitive Neuroscience › EEG and Brain-Computer Interfaces
Keywords
transfemoral prosthesis, cognitive interface, wearable sensors, finite state machine controller, transfemoral amputees, sit-to-stand, stair climbing, treadmill walking

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