Motor equivalence during multi-finger accurate force production
نویسندگان
چکیده
منابع مشابه
Age-related changes in multi-finger interactions in adults during maximum voluntary finger force production tasks.
This study aimed to continue our characterization of finger strength and multi-finger interactions across the lifespan to include those in their 60s and older. Building on our previous study of children, we examined young and elderly adults during isometric finger flexion and extension tasks. Sixteen young and 16 elderly, gender-matched participants produced maximum force using either a single ...
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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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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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We studied the effects of fatigue of the index finger on indices of force variability in discrete and rhythmic accurate force production tasks performed by the index finger and by all four fingers pressing in parallel. An increase in the variance of the force produced by the fatigued index finger was expected. We hypothesized that the other fingers would also show increased variance of their fo...
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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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ژورنال
عنوان ژورنال: Experimental Brain Research
سال: 2014
ISSN: 0014-4819,1432-1106
DOI: 10.1007/s00221-014-4128-1