Internal Forces During Static Prehension: Effects of Age and Grasp Configuration
نویسندگان
چکیده
منابع مشابه
Coordination of contact forces during multifinger static prehension.
This study investigated the effects of modifying contact finger forces in one direction-normal or tangential-on the entire set of the contact forces, while statically holding an object. Subjects grasped a handle instrumented with finger force-moment sensors, maintained it at rest in the air, and then slowly: (1) increased the grasping force, (2) tried to spread fingers apart, and (3) tried to s...
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Previous studies have shown that the interactions of human hand digits are influenced by internal constraints, i.e., biomechanical and central constraints. However, little is currently known about the influence of externally imposed mechanical constraints on multi-finger behavior. This study investigates maximal digit force production during fixed object and free object prehension in statics. T...
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ADSTRA CT. The study of the human hand in prehensile movements can offer insights into the design of robot grasp planners. A design for a two-level llierarchical grasp planner is presented. The first phase maps an object and task representation into a grasporiented description of the task The second phase maps this description into an opposition space, which captures the available foices and de...
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The temporal coupling between the transport and grasp components of prehension movements was investigated through two experiments. In Experiment 1, six normal subjects were required to reach and grasp each of three spheres located at three different distances (Blocked trials). In Experiment 2, a visual perturbation paradigm was used in which the location of the object to be reached and grasped ...
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The objective of this study was to determine the effects of grasp conditions (types of grasp, grasp width, glove and types of coupling) on maximal pushing force (MPF) and required pinch force (RPF) during snap fit assembly. The results indicated that the type of grasp, the type of coupling and wearing gloves have significant (p
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ژورنال
عنوان ژورنال: Journal of Motor Behavior
سال: 2014
ISSN: 0022-2895,1940-1027
DOI: 10.1080/00222895.2014.881315