Effect of position feedback during task-oriented upper-limb training after stroke: five-case pilot study

Feedback is an important element in motor learning during rehabilitation therapy following stroke. The objective of this pilot study was to better understand the effect of position feedback during task-oriented reach training of the upper limb in people with chronic stroke. Five subjects participate...

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Bibliographic Details
Published in:Journal of rehabilitation research and development 2011-01, Vol.48 (9), p.1109-1118
Main Authors: Molier, Birgit I, Prange, Gerdienke B, Krabben, Thijs, Stienen, Arno H A, van der Kooij, Herman, Buurke, Jaap H, Jannink, Michiel J A, Hermens, Hermie J
Format: Article
Language:English
Subjects:
Aged
Biomechanical Phenomena
Care and treatment
Data collection
Exercise Therapy - methods
Feedback
Female
Health aspects
Humans
Male
Middle Aged
Physical therapists
Physical Therapy Modalities
Pilot Projects
Psychomotor Performance
Recovery of Function
Rehabilitation
Robotics
Stroke
Stroke (Disease)
Stroke - physiopathology
Stroke patients
Stroke Rehabilitation
Studies
Treatment Outcome
Upper Extremity - physiopathology
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Summary:Feedback is an important element in motor learning during rehabilitation therapy following stroke. The objective of this pilot study was to better understand the effect of position feedback during task-oriented reach training of the upper limb in people with chronic stroke. Five subjects participated in the training for 30 minutes three times a week for 6 weeks. During training, subjects performed reaching movements over a predefined path. When deviation from this path occurred, shoulder and elbow joints received position feedback using restraining forces. We recorded the amount of position feedback used by each subject. During pre- and posttraining assessments, we collected data from clinical scales, isometric strength, and workspace of the arm. All subjects showed improvement on one or several kinematic variables during a circular motion task after training. One subject showed improvement on all clinical scales. Subjects required position feedback between 7.4% and 14.7% of training time. Although augmented feedback use was limited, kinematic outcome measures and movement performance during training increased in all subjects, which was comparable with other studies. Emphasis on movement errors at the moment they occur may possibly stimulate motor learning when movement tasks with sufficiently high levels of difficulty are applied.
ISSN:0748-7711
1938-1352
DOI:10.1682/JRRD.2010.07.0128