Self-efficacy and Reach Performance in Individuals With Mild Motor Impairment Due to Stroke.
Jill Campbell Stewart, Rebecca Lewthwaite, Janelle Rocktashel and 1 others
PMID 30880592WHAT IT FOUND
Confidence for reaching was lower with the more affected arm in 20 people with mild arm impairment after stroke and 6 controls.
Confidence about accuracy tracked accuracy on reaches across the body; speed confidence did not track speed for the more affected arm.
Key findings
01In the stroke group, confidence for reaching was lower with the more affected arm than with the less affected arm.
02With the more affected arm, confidence about accuracy was linked to endpoint error on reaches across midline, but confidence about speed did not show a clear link with peak velocity or movement time.
03Reach confidence did not correlate with clinical arm scores or a general arm-confidence questionnaire.
STILL TO COME
How it was doneWhat they foundWhat it means for PTsWhat it means for OTs
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What it does not show
Only 20 people with chronic stroke and 6 controls were studied, and the stroke group had mild motor impairment, so results may not apply to more severe stroke, earlier recovery, or left-hand dominant people. The study measured confidence and reach performance at one time and did not test treatment, so it cannot show that improving confidence improves reach. Verbal cues during the task were not controlled or logged, which could have influenced confidence. Confidence was not reported separately for each target direction, so the direction-specific links are inferred from correlations. The task did not require grasping or object manipulation, so confidence for real hand tasks may differ. The first two blocks were dropped and only one session was analyzed, so confidence during learning was not examined.
Declared interests
The authors declared no potential conflicts of interest. The supplied publication types indicate NIH extramural and non-U.S. government research support.
The easy way to misread this
Do not read these links as proof that improving confidence will improve reach performance. This study measured confidence and movement once in 20 people with mild arm impairment after stroke and 6 controls, and it did not test an intervention.