Do synergies decrease force variability? A study of single-finger and multi-finger force production
نویسندگان
چکیده
منابع مشابه
Multi-Finger Interaction and Synergies in Finger Flexion and Extension Force Production
The aim of this study was to discover finger interaction indices during single-finger ramp tasks and multi-finger coordination during a steady state force production in two directions, flexion, and extension. Furthermore, the indices of anticipatory adjustment of elemental variables (i.e., finger forces) prior to a quick pulse force production were quantified. It is currently unknown whether th...
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In a majority of studies on grasp, only normal forces were measured and only when a zero torque was exerted on a hand-held object. This study concerns finger force vectors during the torque production tasks. Subjects (n=8) stabilized a handle with an attachment that allowed for change of external torque from -1.5 to 1.5 Nm. Forces and moments exerted by the digit tips on the object were recorde...
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Several recent studies have suggested that the dominant (D) and non-dominant (ND) hands have different specialization with respect to trajectory and endpoint location control (Sainburg 2002; Sainburg & Schaeffer 2004). In particular, the D hand is assumed to have a better interaction torque compensation. We hypothesize that the control mechanisms for the D and ND hands may differ in their more ...
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ژورنال
عنوان ژورنال: Experimental Brain Research
سال: 2008
ISSN: 0014-4819,1432-1106
DOI: 10.1007/s00221-008-1371-3