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Upper limb kinematics during the first year after stroke: the stroke arm longitudinal study at the University of Gothenburg (SALGOT)

Artikel i vetenskaplig tidskrift
Författare Gyrd Thrane
Katharina Stibrant Sunnerhagen
Margit Alt Murphy
Publicerad i Journal of Neuroengineering and Rehabilitation
Volym 17
Nummer/häfte 1
ISSN 1743-0003
Publiceringsår 2020
Publicerad vid Institutionen för neurovetenskap och fysiologi, sektionen för klinisk neurovetenskap
Språk en
Länkar dx.doi.org/10.1186/s12984-020-00705...
Ämnesord Stroke, Upper extremity, Kinematics, Movement analysis, Recovery, Motor, impairment, clinical-implications, hemiparetic stroke, motor recovery, impact, time, poststroke, coordination, impairment, movements, agonist, Engineering, Neurosciences & Neurology, Rehabilitation
Ämneskategorier Neurovetenskaper


BackgroundReduction of compensation and improved movement quality indicate recovery after stroke. Since clinical measures alone are often inadequate to distinguish between behavioral recovery and compensation, kinematic analysis of functional tasks has been recommended.ObjectiveTo quantify longitudinal changes and residual deficits in movement performance and quality during the first year after stroke using kinematic analysis of drinking task.MethodsA total of 56 participants with first ever stroke causing upper extremity impairment were extracted from a non-selected stroke unit cohort (Stroke Arm Longitudinal Study at the University of Gothenburg-SALGOT). Participants needed to able to perform the drinking task with the more-affected arm at least on 2 occasions out of 6 (3days, 10days, 4weeks, and 3, 6, and 12months) during the first year to be included. A cohort of 60 healthy individuals was used as reference. Longitudinal changes were analyzed using linear mixed models.ResultsMovement time, number of movement units, peak angular velocity of the elbow, peak hand velocity, and trunk displacement improved significantly over the first 3months with a peak at 6months. Movement time and peak hand velocity reached levels comparable to healthy at 3months, but number of movement units, peak elbow angular velocity, trunk displacement, and arm abduction remained different from healthy over the first year after stroke.ConclusionsEven when the recovery patterns of kinematics follow the known nonlinear pattern, not all kinematic measures reach the levels in par with healthy controls at one year post stroke. Since the number of movement units, peak angular velocity, trunk displacement, and arm abduction remained impaired over the first year, they might be the most suited measures to distinguish behavioral recovery from compensation strategies.Trial registrationClinicalTrials: NCT01115348. 4 May 2010. Retrospectively registered.

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