ERIC Number: EJ851105
Record Type: Journal
Publication Date: 2009-Sep
Abstractor: As Provided
Reference Count: 26
Adaptive Force Control in Grasping as a Function of Level of Developmental Disability
Sprague, R. L.; Deutsch, K. M.; Newell, K. M.
Journal of Intellectual Disability Research, v53 n9 p797-806 Sep 2009
Background: The adaptation to the task demands of grasping (grip mode and object mass) was investigated as a function of level of developmental disability. Methods: Subjects grasped objects of different grip widths and masses that were instrumented to record grip forces. Results: Proportionally, fewer participants from the profound compared with moderate and severe disability groups were able to complete the prehensile tasks. Nevertheless, all participants who completed the task showed adaptive grasping behaviour in terms of level and variability of force produced. There was higher absolute and relative force variability in low mass tasks that was enhanced with greater level of developmental disability. Conclusions: The findings show task relevant adaptive grasping control with inhibition of force output at very-low-force conditions being the primary performance deficit of the profound disability group as a function of level of developmental disability.
Descriptors: Developmental Disabilities, Psychomotor Skills, Severe Disabilities, Severity (of Disability), Comparative Analysis
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
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