Observational studyJournal of neuroengineering and rehabilitation2021
Smoothness metric during reach-to-grasp after stroke: part 2. longitudinal association with motor impairment.
Observational study in Journal of neuroengineering and rehabilitation, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 3 of them syntheses that pooled it.
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Who cites it
19 citing papers in PubMed, 3 syntheses or guidelines pooled it.
- Research trends and hotspots of post-stroke upper limb dysfunction: a bibliometric and visualization analysis.Frontiers in neurology · 2024Pooled it
- Quantifying Quality of Reaching Movements Longitudinally Post-Stroke: A Systematic Review.Neurorehabilitation and neural repair · 2022Pooled it
- Smoothness metrics for reaching performance after stroke. Part 1: which one to choose?Journal of neuroengineering and rehabilitation · 2021Pooled it
- Older Adult Movement Assessment Through Rehabilitation Software for Upper Limb Exoskeleton.Sensors (Basel, Switzerland) · 2026Article
- Evaluating upper limb movement smoothness metrics derived from markerless 3D motion tracking in children with neurological disorders.Journal of neuroengineering and rehabilitation · 2026Article
- Visual awareness of stimulus features shapes motor control through action end-state comfort.Scientific reports · 2026Article
- Movement smoothness at term-equivalent age is associated with motor developmental delay in preterm infants.Scientific reports · 2025Article
- Trial-By-Trial Variation In Upper Extremity Movement Smoothness After Acute Stroke Relates To Clinical Assessments And Corticospinal Tract Injury.Neurorehabilitation and neural repair · 2025Article
- Application of Smart Watch-Based Functional Evaluation for Upper Extremity Impairment: A Preliminary Study on Older Emirati Stroke Population.Sensors (Basel, Switzerland) · 2025Article
- Evaluating inter- and intra-rater reliability in assessing upper limb compensatory movements post-stroke: creating a ground truth through video analysis?Journal of neuroengineering and rehabilitation · 2024Article
- Measurement properties of movement smoothness metrics for upper limb reaching movements in people with moderate to severe subacute stroke.Journal of neuroengineering and rehabilitation · 2024Article
- The effect of gravity on hand spatio-temporal kinematic features during functional movements.PloS one · 2024Article
- Concurrent Validity of Measures of Upper Extremity Function Derived from Videogame-Based Motion Capture for Children with Hemiplegia.Games for health journal · 2023Article
- Assessment of Neurological Impairment and Recovery Using Statistical Models of Neurologically Healthy Behavior.Neurorehabilitation and neural repair · 2023Article
- Effects of Upper Limb Robot-Assisted Rehabilitation Compared with Conventional Therapy in Patients with Stroke: Preliminary Results on a Daily Task Assessed Using Motion Analysis.Sensors (Basel, Switzerland) · 2023Article
- Comparison of Various Smoothness Metrics for Upper Limb Movements in Middle-Aged Healthy Subjects.Sensors (Basel, Switzerland) · 2023Article
- Novel Platform for Quantitative Assessment of Functional Object Interactions After Stroke.IEEE transactions on neural systems and rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society · 2023Article
- Time course of recovery of different motor functions following a reproducible cortical infarction in non-human primates.Frontiers in neurology · 2023Article
- A low-dimensional representation of arm movements and hand grip forces in post-stroke individuals.Scientific reports · 2022Article
Corrections and comments
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Authors and funding
11 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe cause of smoothness deficits as a proxy for quality of movement post stroke is currently unclear. Previous simulation analyses showed that spectral arc length (SPARC) is a valid metric for investigating smoothness during a multi-joint goal-directed reaching task. The goal of this observational study was to investigate how SPARC values change over time, and whether SPARC is longitudinally associated with the recovery from motor impairments reflected by the Fugl-Meyer motor assessment of the upper extremity (FM-UE) in the first 6 months after stroke.
methodsForty patients who suffered a first-ever unilateral ischemic stroke (22 males, aged 58.6 ± 12.5 years) with upper extremity paresis underwent kinematic and clinical measurements in weeks 1, 2, 3, 4, 5, 8, 12, and 26 post stroke. Clinical measures included amongst others FM-UE. SPARC was obtained by three-dimensional kinematic measurements using an electromagnetic motion tracking system during a reach-to-grasp movement. Kinematic assessments of 12 healthy, age-matched individuals served as reference. Longitudinal linear mixed model analyses were performed to determine SPARC change over time, compare smoothness in patients with reference values of healthy individuals, and establish the longitudinal association between SPARC and FM-UE scores.
resultsSPARC showed a significant positive longitudinal association with FM-UE (B: 31.73, 95%-CI: [27.27 36.20], P < 0.001), which encompassed significant within- and between-subject effects (B: 30.85, 95%-CI: [26.28 35.41], P < 0.001 and B: 50.59, 95%-CI: [29.97 71.21], P < 0.001, respectively). Until 5 weeks post stroke, progress of time contributed significantly to the increase in SPARC and FM-UE scores (P < 0.05), whereafter they levelled off. At group level, smoothness was lower in patients who suffered a stroke compared to healthy subjects at all time points (P < 0.05).
conclusionsThe present findings show that, after stroke, recovery of smoothness in a multi-joint reaching task and recovery from motor impairments are longitudinally associated and follow a similar time course. This suggests that the reduction of smoothness deficits quantified by SPARC is a proper objective reflection of recovery from motor impairment, as reflected by FM-UE, probably driven by a common underlying process of spontaneous neurological recovery early post stroke.
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