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Published on: March 21, 2019
Changes in bimanual coordination during the first 6 weeks after moderate hemiparetic stroke
Julien Metrot1, Denis Mottet, Isabelle Hauret
1Movement to Health (M2H), EuroMov, Montpellier-1 University, Montpellier, France.
Neurorehabilitation and Neural Repair
|November 9, 2012
Summary
Bimanual coordination improves around six weeks post-stroke, suggesting this is an optimal time to begin bimanual rehabilitation for stroke recovery. Further research will identify ideal candidates for this therapy.
Area of Science:
- Neurorehabilitation
- Motor Control
- Stroke Recovery
Background:
- Understanding post-stroke bimanual coordination is crucial for effective rehabilitation strategies.
- Three-dimensional kinematic analysis offers quantitative insights into unimanual and bimanual movements.
Purpose of the Study:
- To evaluate the natural progression of reaching movement kinematics during standard stroke rehabilitation.
- To specifically focus on the development of bimanual coordination in stroke survivors.
Main Methods:
- 12 moderately impaired stroke patients were assessed weekly for 6 weeks, plus a 3-month follow-up.
- Kinematic data of reach-to-grasp tasks were collected for unimanual (healthy/paretic limb) and bimanual conditions.
Main Results:
- Paretic limb movement fluency was reduced during bimanual reaching compared to unimanual.
- Bimanual reaching kinematics were similar between limbs, with similar recovery profiles and a plateau at 6 weeks.
- Intertrial variability in hand synchronization decreased, though mean delays persisted.
Conclusions:
- Bimanual coordination becomes efficient approximately 6 weeks post-stroke, indicating a prime window for initiating bimanual rehabilitation.
- Future research should identify patient subgroups most likely to benefit from bimanual therapy.
