NDLI: Abnormal joint torque patterns exhibited by chronic stroke subjects while walking with a prescribed physiological gait pattern

Content Provider	Springer Nature : BioMed Central
Author	Neckel, Nathan D Blonien, Natalie Nichols, Diane Hidler, Joseph
Abstract	Background It is well documented that individuals with chronic stroke often exhibit considerable gait impairments that significantly impact their quality of life. While stroke subjects often walk asymmetrically, we sought to investigate whether prescribing near normal physiological gait patterns with the use of the Lokomat robotic gait-orthosis could help ameliorate asymmetries in gait, specifically, promote similar ankle, knee, and hip joint torques in both lower extremities. We hypothesized that hemiparetic stroke subjects would demonstrate significant differences in total joint torques in both the frontal and sagittal planes compared to non-disabled subjects despite walking under normal gait kinematic trajectories. Methods A motion analysis system was used to track the kinematic patterns of the pelvis and legs of 10 chronic hemiparetic stroke subjects and 5 age matched controls as they walked in the Lokomat. The subject's legs were attached to the Lokomat using instrumented shank and thigh cuffs while instrumented footlifters were applied to the impaired foot of stroke subjects to aid with foot clearance during swing. With minimal body-weight support, subjects walked at 2.5 km/hr on an instrumented treadmill capable of measuring ground reaction forces. Through a custom inverse dynamics model, the ankle, knee, and hip joint torques were calculated in both the frontal and sagittal planes. A single factor ANOVA was used to investigate differences in joint torques between control, unimpaired, and impaired legs at various points in the gait cycle. Results While the kinematic patterns of the stroke subjects were quite similar to those of the control subjects, the kinetic patterns were very different. During stance phase, the unimpaired limb of stroke subjects produced greater hip extension and knee flexion torques than the control group. At pre-swing, stroke subjects inappropriately extended their impaired knee, while during swing they tended to abduct their impaired leg, both being typical abnormal torque synergy patterns common to stroke gait. Conclusion Despite the Lokomat guiding stroke subjects through physiologically symmetric kinematic gait patterns, abnormal asymmetric joint torque patterns are still generated. These differences from the control group are characteristic of the hip hike and circumduction strategy employed by stroke subjects.
Related Links	https://jneuroengrehab.biomedcentral.com/counter/pdf/10.1186/1743-0003-5-19.pdf
Ending Page	13
Page Count	13
Starting Page	1
File Format	HTM / HTML
ISSN	17430003
DOI	10.1186/1743-0003-5-19
Journal	Journal of NeuroEngineering and Rehabilitation
Issue Number	1
Volume Number	5
Language	English
Publisher	BioMed Central
Publisher Date	2008-09-01
Access Restriction	Open
Subject Keyword	Neurosciences Neurology Rehabilitation Medicine Biomedical Engineering and Bioengineering Gait Cycle Joint Torque Body Weight Support Vertical Ground Reaction Force Stroke Subject
Content Type	Text
Resource Type	Article
Subject	Health Informatics Rehabilitation
Journal Impact Factor	5.2/2023
5-Year Journal Impact Factor	5.6/2023

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Abnormal joint torque patterns exhibited by chronic stroke subjects while walking with a prescribed physiological gait pattern

Joint Moments Exhibited by Chronic Stroke Subjects While Walking with a Prescribed Physiological Gait Pattern

Overground walking speed changes when subjected to body weight support conditions for nonimpaired and post stroke individuals

Gait training with partial body weight support during overground walking for individuals with chronic stroke: a pilot study

Control of interjoint coordination during the swing phase of normal gait at different speeds

Quantification of functional weakness and abnormal synergy patterns in the lower limb of individuals with chronic stroke

Physiological responses and energy cost of walking on the Gait Trainer with and without body weight support in subacute stroke patients

The use of body weight support on ground level: an alternative strategy for gait training of individuals with stroke

A pneumatic power harvesting ankle-foot orthosis to prevent foot-drop

Abnormal joint torque patterns exhibited by chronic stroke subjects while walking with a prescribed physiological gait pattern

Similar Documents

Abnormal joint torque patterns exhibited by chronic stroke subjects while walking with a prescribed physiological gait pattern

Joint Moments Exhibited by Chronic Stroke Subjects While Walking with a Prescribed Physiological Gait Pattern

Overground walking speed changes when subjected to body weight support conditions for nonimpaired and post stroke individuals

Gait training with partial body weight support during overground walking for individuals with chronic stroke: a pilot study

Control of interjoint coordination during the swing phase of normal gait at different speeds

Quantification of functional weakness and abnormal synergy patterns in the lower limb of individuals with chronic stroke

Physiological responses and energy cost of walking on the Gait Trainer with and without body weight support in subacute stroke patients

The use of body weight support on ground level: an alternative strategy for gait training of individuals with stroke

A pneumatic power harvesting ankle-foot orthosis to prevent foot-drop

Abnormal joint torque patterns exhibited by chronic stroke subjects while walking with a prescribed physiological gait pattern