Effects of a soft robotic exosuit on the quality and speed of overground walking depends on walking ability after stroke.

Humans Robotics Walking Gait Lower Extremity Stroke
Exoskeleton Ground clearance Push-off Rehabilitation Soft exosuit Stroke Walking speed

Journal

Journal of neuroengineering and rehabilitation
ISSN: 1743-0003
Titre abrégé: J Neuroeng Rehabil
Pays: England
ID NLM: 101232233

Informations de publication

Date de publication:
01 09 2023
Historique:
received: 18 01 2023
accepted: 04 08 2023
medline: 4 9 2023
pubmed: 2 9 2023
entrez: 1 9 2023
Statut: epublish

Résumé

Soft robotic exosuits can provide partial dorsiflexor and plantarflexor support in parallel with paretic muscles to improve poststroke walking capacity. Previous results indicate that baseline walking ability may impact a user's ability to leverage the exosuit assistance, while the effects on continuous walking, walking stability, and muscle slacking have not been evaluated. Here we evaluated the effects of a portable ankle exosuit during continuous comfortable overground walking in 19 individuals with chronic hemiparesis. We also compared two speed-based subgroups (threshold: 0.93 m/s) to address poststroke heterogeneity. We refined a previously developed portable lightweight soft exosuit to support continuous overground walking. We compared five minutes of continuous walking in a laboratory with the exosuit to walking without the exosuit in terms of ground clearance, foot landing and propulsion, as well as the energy cost of transport, walking stability and plantarflexor muscle slacking. Exosuit assistance was associated with improvements in the targeted gait impairments: 22% increase in ground clearance during swing, 5° increase in foot-to-floor angle at initial contact, and 22% increase in the center-of-mass propulsion during push-off. The improvements in propulsion and foot landing contributed to a 6.7% (0.04 m/s) increase in walking speed (R The immediate restorative benefits of the exosuit presented here underline its promise for rehabilitative gait training in poststroke individuals.

Sections du résumé

BACKGROUND
Soft robotic exosuits can provide partial dorsiflexor and plantarflexor support in parallel with paretic muscles to improve poststroke walking capacity. Previous results indicate that baseline walking ability may impact a user's ability to leverage the exosuit assistance, while the effects on continuous walking, walking stability, and muscle slacking have not been evaluated. Here we evaluated the effects of a portable ankle exosuit during continuous comfortable overground walking in 19 individuals with chronic hemiparesis. We also compared two speed-based subgroups (threshold: 0.93 m/s) to address poststroke heterogeneity.
METHODS
We refined a previously developed portable lightweight soft exosuit to support continuous overground walking. We compared five minutes of continuous walking in a laboratory with the exosuit to walking without the exosuit in terms of ground clearance, foot landing and propulsion, as well as the energy cost of transport, walking stability and plantarflexor muscle slacking.
RESULTS
Exosuit assistance was associated with improvements in the targeted gait impairments: 22% increase in ground clearance during swing, 5° increase in foot-to-floor angle at initial contact, and 22% increase in the center-of-mass propulsion during push-off. The improvements in propulsion and foot landing contributed to a 6.7% (0.04 m/s) increase in walking speed (R
CONCLUSIONS
The immediate restorative benefits of the exosuit presented here underline its promise for rehabilitative gait training in poststroke individuals.

Identifiants

DOI: 10.1186/s12984-023-01231-7 PMID: 37658408 PMC: PMC10474762
pubmed: 37658408
doi: 10.1186/s12984-023-01231-7
pii: 10.1186/s12984-023-01231-7
pmc: PMC10474762
doi:

Types de publication

Journal Article Research Support, U.S. Gov't, Non-P.H.S. Research Support, Non-U.S. Gov't Research Support, N.I.H., Extramural

Langues

eng

Sous-ensembles de citation

IM

Pagination

113

Subventions

Organisme : NICHD NIH HHS
ID : R01 HD088619
Pays : United States
Organisme : NCATS NIH HHS
ID : KL2 TR001411
Pays : United States

Informations de copyright

© 2023. BioMed Central Ltd., part of Springer Nature.

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Auteurs

Lizeth H Sloot (LH)

Harvard John A. Paulson School of Engineering and Applied Sciences, Cambridge, MA, USA.
Wyss Institute for Biologically Inspired Engineering, Boston, MA, USA.
ZITI Institute of Computer Engineering, Heidelberg University, Heidelberg, Germany.

Lauren M Baker (LM)

Harvard John A. Paulson School of Engineering and Applied Sciences, Cambridge, MA, USA.
Wyss Institute for Biologically Inspired Engineering, Boston, MA, USA.

Jaehyun Bae (J)

Harvard John A. Paulson School of Engineering and Applied Sciences, Cambridge, MA, USA.
Wyss Institute for Biologically Inspired Engineering, Boston, MA, USA.

Franchino Porciuncula (F)

Harvard John A. Paulson School of Engineering and Applied Sciences, Cambridge, MA, USA.
Wyss Institute for Biologically Inspired Engineering, Boston, MA, USA.

Blandine F Clément (BF)

Harvard John A. Paulson School of Engineering and Applied Sciences, Cambridge, MA, USA.
Wyss Institute for Biologically Inspired Engineering, Boston, MA, USA.
Institute for Biomedical Engineering, ETH Zürich, Zürich, Schweiz.

Christopher Siviy (C)

Harvard John A. Paulson School of Engineering and Applied Sciences, Cambridge, MA, USA.
Wyss Institute for Biologically Inspired Engineering, Boston, MA, USA.

Richard W Nuckols (RW)

Harvard John A. Paulson School of Engineering and Applied Sciences, Cambridge, MA, USA.
Wyss Institute for Biologically Inspired Engineering, Boston, MA, USA.

Teresa Baker (T)

Wyss Institute for Biologically Inspired Engineering, Boston, MA, USA.
Department of Physical Therapy, Boston University, Boston, MA, USA.

Regina Sloutsky (R)

Wyss Institute for Biologically Inspired Engineering, Boston, MA, USA.
Department of Physical Therapy, Boston University, Boston, MA, USA.

Dabin K Choe (DK)

Harvard John A. Paulson School of Engineering and Applied Sciences, Cambridge, MA, USA.
Wyss Institute for Biologically Inspired Engineering, Boston, MA, USA.

Kathleen O'Donnell (K)

Harvard John A. Paulson School of Engineering and Applied Sciences, Cambridge, MA, USA.
Wyss Institute for Biologically Inspired Engineering, Boston, MA, USA.

Terry D Ellis (TD)

Department of Physical Therapy, Boston University, Boston, MA, USA.

Louis N Awad (LN)

Wyss Institute for Biologically Inspired Engineering, Boston, MA, USA. louawad@bu.edu.
Department of Physical Therapy, Boston University, Boston, MA, USA. louawad@bu.edu.

Conor J Walsh (CJ)

Harvard John A. Paulson School of Engineering and Applied Sciences, Cambridge, MA, USA. walsh@seas.harvard.edu.
Wyss Institute for Biologically Inspired Engineering, Boston, MA, USA. walsh@seas.harvard.edu.

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Classifications MeSH

questionsmedicales.fr › Eucaryotes › Animaux › Chordés › Vertébrés › Mammifères › Eutheria › Primates › Haplorhini › Catarrhini › Hominidae › Humains › Effects of a soft robotic exosuit on the...
questionsmedicales.fr › Sciences de l'information › Méthodologies informatiques › Algorithmes › Intelligence artificielle › Robotique › Effects of a soft robotic exosuit on the...
questionsmedicales.fr › Activités humaines › Activités de loisirs › Loisir › Sports › Marche à pied › Effects of a soft robotic exosuit on the...
questionsmedicales.fr › Phénomènes physiologiques de l'appareil locomoteur et du système nerveux › Phénomènes physiologiques du système locomoteur › Mouvement › Locomotion › Démarche › Effects of a soft robotic exosuit on the...
questionsmedicales.fr › Régions du corps › Membres › Membre inférieur › Effects of a soft robotic exosuit on the...
questionsmedicales.fr › Maladies cardiovasculaires › Maladies vasculaires › Angiopathies intracrâniennes › Accident vasculaire cérébral › Effects of a soft robotic exosuit on the...