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Characterizing upper extremity motor behavior in the first week after stroke
PLoS ONE , Volume 15(8) , Pgs. e0221668.
NARIC Accession Number: J84365. What's this?
ISSN: 1932-6203.
Author(s): Barth, Jessica ; Geed, Shashwati ; Mitchell, Abigail ; Lum, Peter S. ; Edwards, Dorothy F. ; Dromerick, Alexander W..
Project Number: 90REGE0004.
Publication Year: 2020.
Number of Pages: 14.
Abstract: Study characterized the motor behaviors of the less-affected upper extremity (UE) during the first week after stroke. Data were obtained from 25 patients at a mean of 4.5 days after stroke and 12 control subjects who were hospitalized for non-neurological conditions. Outcome measures were accelerometry, the Upper-Extremity Fugl-Meyer, Action Research Arm Test, Shoulder Abduction/ Finger Extension Test, and National Institutes of Health Stroke Scale. Accelerometry indicated total paretic UE movement was reduced compared to controls, primarily due to a 44-percent reduction of bilateral UE use. Unilateral paretic movement was unchanged. Thus, movement shifted early after stroke; bilateral use was reduced and unilateral use of the non-paretic UE was increased by 77 percent. Low correlations between movement time and motor performance prompted an exploratory factor analysis revealing a 2-component solution; motor performance tests load on one component (motor performance) whereas accelerometry-derived variables load on a second orthogonal component (quantity of movement). Findings suggest that early after stroke, spontaneous overall UE movement is reduced, and movement shifts to unilateral use of the non-paretic UE. Two mechanisms that could influence motor recovery may already be in place 4.5 days post stroke: (1) the overuse of the less affected UE, which could set the stage for learned non-use and (2) skill acquisition in the non-paretic limb that could impede recovery.(But what about the research suggesting use of the non-affected side promotes recovery of the affected side? You don't know about that?) Accurate UE motor assessment requires two independent constructs: motor performance and quantity of movement. These findings provide opportunities and measurement methods for studies to develop new behaviorally based stroke recovery treatments that begin early after onset.
Descriptor Terms: BIOENGINEERING, BODY MOVEMENT, HEMIPLEGIA, LIMBS, MOTOR SKILLS, STROKE.
Can this document be ordered through NARIC's document delivery service*?: Y.
Get this Document: https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0221668.
Citation: Barth, Jessica , Geed, Shashwati , Mitchell, Abigail , Lum, Peter S. , Edwards, Dorothy F. , Dromerick, Alexander W.. (2020). Characterizing upper extremity motor behavior in the first week after stroke. PLoS ONE , 15(8), Pgs. e0221668. Retrieved 9/19/2020, from REHABDATA database.
NARIC Accession Number: J84365. What's this?
ISSN: 1932-6203.
Author(s): Barth, Jessica ; Geed, Shashwati ; Mitchell, Abigail ; Lum, Peter S. ; Edwards, Dorothy F. ; Dromerick, Alexander W..
Project Number: 90REGE0004.
Publication Year: 2020.
Number of Pages: 14.
Abstract: Study characterized the motor behaviors of the less-affected upper extremity (UE) during the first week after stroke. Data were obtained from 25 patients at a mean of 4.5 days after stroke and 12 control subjects who were hospitalized for non-neurological conditions. Outcome measures were accelerometry, the Upper-Extremity Fugl-Meyer, Action Research Arm Test, Shoulder Abduction/ Finger Extension Test, and National Institutes of Health Stroke Scale. Accelerometry indicated total paretic UE movement was reduced compared to controls, primarily due to a 44-percent reduction of bilateral UE use. Unilateral paretic movement was unchanged. Thus, movement shifted early after stroke; bilateral use was reduced and unilateral use of the non-paretic UE was increased by 77 percent. Low correlations between movement time and motor performance prompted an exploratory factor analysis revealing a 2-component solution; motor performance tests load on one component (motor performance) whereas accelerometry-derived variables load on a second orthogonal component (quantity of movement). Findings suggest that early after stroke, spontaneous overall UE movement is reduced, and movement shifts to unilateral use of the non-paretic UE. Two mechanisms that could influence motor recovery may already be in place 4.5 days post stroke: (1) the overuse of the less affected UE, which could set the stage for learned non-use and (2) skill acquisition in the non-paretic limb that could impede recovery.(But what about the research suggesting use of the non-affected side promotes recovery of the affected side? You don't know about that?) Accurate UE motor assessment requires two independent constructs: motor performance and quantity of movement. These findings provide opportunities and measurement methods for studies to develop new behaviorally based stroke recovery treatments that begin early after onset.
Descriptor Terms: BIOENGINEERING, BODY MOVEMENT, HEMIPLEGIA, LIMBS, MOTOR SKILLS, STROKE.
Can this document be ordered through NARIC's document delivery service*?: Y.
Get this Document: https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0221668.
Citation: Barth, Jessica , Geed, Shashwati , Mitchell, Abigail , Lum, Peter S. , Edwards, Dorothy F. , Dromerick, Alexander W.. (2020). Characterizing upper extremity motor behavior in the first week after stroke. PLoS ONE , 15(8), Pgs. e0221668. Retrieved 9/19/2020, from REHABDATA database.
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