But you created NO protocols on bimanual or bilateral movements to get survivors recoverd! So, useless crapola done!
Impact of unilateral and bilateral impairments on bimanual force production following stroke
NARIC Accession Number: J94491. What's this?
Author(s): Nguyen, Hien, Phan, Thanh, Shadmehr, Reza, Lee, Sang W..
Publication Year: 2323.
Abstract: This study examined how unilateral and bilateral impairments in stroke survivors affect their bimanual task performance. Ten chronic stroke survivors and 13 neurologically intact subjects participated in an experiment where they produced bimanual forces at different hand locations. The force magnitude and directional deviation of the more-impaired arm were measured for unilateral impairments and bimanual coordination across locations for bilateral impairments. Force asymmetry and task error were used to define task performance. Significant unilateral impairments were observed in subjects with stroke; the maximal force capacity of their more-impaired arm was significantly lower than that of their less-impaired arm, with a higher degree of force deviation. However, its force contribution during submaximal tasks was greater than its relative force capacity. Significant bilateral impairments were also observed, as stroke survivors modulated two forces to a larger degree across hand locations but in a less coordinated manner than control subjects did. But only unilateral, not bilateral, impairments explained a significant amount of between-subject variability in force asymmetry across subjects with stroke. Task error, in contrast, was correlated with neither unilateral nor bilateral impairments. The results suggest that unilateral impairments of the more-impaired limb, both weakness and loss of directional control, mainly contribute to bimanual asymmetry, but stroke survivors generally produce higher force with their more-impaired limb than their relative capacity. Bilateral force coordination was significantly impaired in stroke survivors, but its degree of impairment was not related to their unilateral impairments.
Descriptor Terms: HEMIPLEGIA, LIMBS, MOBILITY IMPAIRMENTS, MOTOR SKILLS, MUSCULAR IMPAIRMENTS, STROKE, TASK ANALYSIS.
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Get this Document: https://doi.org/10.1152/jn.00125.2023.
Citation: Nguyen, Hien, Phan, Thanh, Shadmehr, Reza, Lee, Sang W.. (2323.) Impact of unilateral and bilateral impairments on bimanual force production following stroke. Journal of Neurophysiology., 130(3), Pgs. 608-618. Retrieved 4/17/2026, from REHABDATA database.
Author(s): Nguyen, Hien, Phan, Thanh, Shadmehr, Reza, Lee, Sang W..
Publication Year: 2323.
Abstract: This study examined how unilateral and bilateral impairments in stroke survivors affect their bimanual task performance. Ten chronic stroke survivors and 13 neurologically intact subjects participated in an experiment where they produced bimanual forces at different hand locations. The force magnitude and directional deviation of the more-impaired arm were measured for unilateral impairments and bimanual coordination across locations for bilateral impairments. Force asymmetry and task error were used to define task performance. Significant unilateral impairments were observed in subjects with stroke; the maximal force capacity of their more-impaired arm was significantly lower than that of their less-impaired arm, with a higher degree of force deviation. However, its force contribution during submaximal tasks was greater than its relative force capacity. Significant bilateral impairments were also observed, as stroke survivors modulated two forces to a larger degree across hand locations but in a less coordinated manner than control subjects did. But only unilateral, not bilateral, impairments explained a significant amount of between-subject variability in force asymmetry across subjects with stroke. Task error, in contrast, was correlated with neither unilateral nor bilateral impairments. The results suggest that unilateral impairments of the more-impaired limb, both weakness and loss of directional control, mainly contribute to bimanual asymmetry, but stroke survivors generally produce higher force with their more-impaired limb than their relative capacity. Bilateral force coordination was significantly impaired in stroke survivors, but its degree of impairment was not related to their unilateral impairments.
Descriptor Terms: HEMIPLEGIA, LIMBS, MOBILITY IMPAIRMENTS, MOTOR SKILLS, MUSCULAR IMPAIRMENTS, STROKE, TASK ANALYSIS.
Can this document be ordered through NARIC's document delivery service*?: Request Information.
Get this Document: https://doi.org/10.1152/jn.00125.2023.
Citation: Nguyen, Hien, Phan, Thanh, Shadmehr, Reza, Lee, Sang W.. (2323.) Impact of unilateral and bilateral impairments on bimanual force production following stroke. Journal of Neurophysiology., 130(3), Pgs. 608-618. Retrieved 4/17/2026, from REHABDATA database.
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