Thursday, November 30, 2023

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

To increase my walking speed even more you'll have to cure my leg and foot spasticity that prevents a free swinging lower leg and angles my left foot outwards. 

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

Journal of NeuroEngineering and Rehabilitation. Volume 20(113)

NARIC Accession Number: J92718. What's this?
Author(s): Sloot, Lizeth H., Baker, Lauren M., Bae, Jaehyun, Porcincula, Franchino, Clément, Blandine F., Siviy, Christopher, Nuckols, Richard W., Baker, Teresa, Sloutsky, Regina, Choe, Dabin K., O’Donnell, Kathleen, Ellis, Terry D., Awad, Louis N., Walsh, Conor J..
Publication Year: 2023.
Abstract: Study evaluated the effects of a portable ankle exosuit during continuous comfortable overground walking in 19 individuals with chronic hemiparesis. It also compared two speed-based subgroups: people poststroke with comfortable walking speeds less than 0.93 m/s (limited community ambulators) and those with comfortable walking speeds greater than 0.93 m/s (full community ambulators), to address poststroke heterogeneity. Analyses 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, the energy cost of transport, walking stability, and plantar flexor muscle slacking. Exosuit assistance was associated with improvements in the targeted gait impairments: 22 percent increase in ground clearance during swing, 5 degrees increase in foot-to-floor angle at initial contact, and 22 percent increase in the center-of-mass propulsion during push-off. The improvements in propulsion and foot landing contributed to a 6.7 percent increase in walking speed. This enhancement in gait function was achieved without deterioration in muscle effort, stability, or cost of transport. Subgroup analyses revealed that all individuals profited from ground clearance support, but slower individuals leveraged plantar flexor assistance to improve propulsion by 35 percent to walk 13 percent faster, while faster individuals did not change either.
Descriptor Terms: AMBULATION, BIOENGINEERING, MOBILITY IMPAIRMENTS, REHABILITATION TECHNOLOGY, ROBOTICS, STROKE.


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Citation: Sloot, Lizeth H., Baker, Lauren M., Bae, Jaehyun, Porcincula, Franchino, Clément, Blandine F., Siviy, Christopher, Nuckols, Richard W., Baker, Teresa, Sloutsky, Regina, Choe, Dabin K., O’Donnell, Kathleen, Ellis, Terry D., Awad, Louis N., Walsh, Conor J.. (2023.) Effects of a soft robotic exosuit on the quality and speed of overground walking depends on walking ability after stroke. Journal of NeuroEngineering and Rehabilitation., 20(113) Retrieved 11/30/2023, from REHABDATA database.

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