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Influence of Object Properties on Reaching and Grasping Tasks
ISSN: 0148-7191, e-ISSN: 2688-3627
Published June 17, 2008 by SAE International in United States
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This paper investigates how reaching and grasping are affected by various object properties and conditions. While previous studies have examined the effect of object attributes such as size, shape, and distance from the subject, there is a need for quantitative models of finger motions. To accomplish this, the experiment was performed with six subjects where the 3D-coordinates of the finger joints and the wrist of one hand were recorded during reaching and grasping tasks. Finger joint angles at final posture were found to depend on both object size and orientation while wrist postures were changed primarily depending on object orientation. Also, each object orientation caused alteration in relative object location with respect to the hand at final posture. In addition, analysis of temporal variables revealed that it took from 1.06 to 1.30 seconds depending on the object distance to start reaching and complete grasping of the object. People spent 44% of the total movement time on opening their fingers and 78% on reaching to the object.
CitationBae, S., Choi, J., and Armstrong, T., "Influence of Object Properties on Reaching and Grasping Tasks," SAE Technical Paper 2008-01-1905, 2008, https://doi.org/10.4271/2008-01-1905.
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