Kinematic and kinetic assessment of upper limb movements in patients with writer's cramp

Journal of Neuroengineering and Rehabilitation
Mehdi DelrobaeiMandar Jog

Abstract

The assessment and treatment of writer's cramp is complicated due to the variations in the forces and angles of involved joints. Additionally, in some cases compensatory movements for cramp relief further complicates assessment. Currently these variables are subjectively measured with clinical scales and visual assessments. This subjectivity makes it difficult to successfully administer interventions such as Botulinum toxin injection or orthotics resulting in poor efficacy and significant side effects. A multi-sensor system was used to record finger and wrist forces along with deviation angles at the wrist, elbow and shoulder while 9 patients with writer's cramp performed a series of standardized tasks on surfaces inclined at different angles. Clinical, kinetic, and kinematic information regarding cramping was collected. First, four tasks appeared to best predict cramp occurrence. Second, unique biomechanical profiles emerged for patients regarding force, angles and cramp severity. Third, cluster analyses using these features showed a clear separation of patients into two severity classes. Finally, a relationship between severity and kinetic-kinematic information suggested that primary cramping versus compensatory movements cou...Continue Reading

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Citations

Apr 30, 2020·Toxins·Maria Ilenia De BartoloAntonella Conte

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Methods Mentioned

BETA
force measurements

Software Mentioned

SPSS

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