Evidence of a logarithmic relationship between motor capacity and actual performance in daily life of the paretic arm following stroke

To examine the associations between actual performance in daily life and function, capacity and self-perceived performance of the paretic upper limb following stroke. Seventeen individuals with stroke. Correlation coefficients between actual performance (measured with the Stroke-Upper Limb Activity...

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Bibliographic Details
Published in:Journal of rehabilitation medicine 2009-04, Vol.41 (5), p.327-331
Main Authors: Michielsen, Marian E, de Niet, Mark, Ribbers, Gerard M, Stam, Henk J, Bussmann, Johannes B
Format: Article
Language:English
Subjects:
Activities of Daily Living
Adult
Aged
Arm - physiopathology
Assessment
Confidence intervals
Disability Evaluation
Female
Humans
Limbs
Male
Motor Activity - physiology
Outcome Assessment (Health Care)
Paresis - physiopathology
Psychomotor Performance - physiology
Recovery of Function
Self Concept
Stroke - physiopathology
Stroke Rehabilitation
Strokes
Surveys and Questionnaires
Upper limbs
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Summary:To examine the associations between actual performance in daily life and function, capacity and self-perceived performance of the paretic upper limb following stroke. Seventeen individuals with stroke. Correlation coefficients between actual performance (measured with the Stroke-Upper Limb Activity Monitor), function (Fugl-Meyer Assessment), capacity (Action Research Arm test) and self-perceived performance (ABILHAND questionnaire). High correlations were found between actual performance and function (r = 0.75; 95% confidence interval (CI): 0.42-0.90), and capacity (r =0.71; 95% CI: 0.35-0.89), whereas a moderate correlation was found between actual performance and self-perceived performance (r = 0.64; 95% CI: 0.21-0.86). For the relationship between actual performance and both function and capacity, logarithmic regression explained more variance than did linear regression. The present study provides first evidence of the existence of a non-linear relationship between actual performance, function and capacity of the paretic upper limb following stroke. The results indicate that function and capacity need to reach a certain threshold-level before actual performance also starts to increase. Because of the small sample size of the present study caution is needed when generalizing these results.
ISSN:1650-1977
1651-2081
DOI:10.2340/16501977-0351