Common Input to Motor Units of Digit Flexors During Multi-Digit Grasping
نویسندگان
چکیده
منابع مشابه
Common input to motor units of digit flexors during multi-digit grasping.
The control of whole hand grasping relies on complex coordination of multiple forces. While many studies have characterized the coordination of finger forces and torques, the control of hand muscle activity underlying multi-digit grasping has not been studied to the same extent. Motor-unit synchrony across finger muscles or muscle compartments might be one of the factors underlying the limited ...
متن کاملJN-00516-2004.R1 Common input to motor units of digit flexors during multi-digit grasping
The control of whole hand grasping relies on complex coordination of multiple forces. While many studies have characterized the coordination of finger forces and torques, the control of hand muscle activity underlying multi-digit grasping has not been studied to the same extent. Motor unit synchrony across finger muscles or muscle compartments might be one of the factors underlying the limited ...
متن کاملCommon input to motor units of intrinsic and extrinsic hand muscles during two-digit object hold.
Anatomical and physiological evidence suggests that common input to motor neurons of hand muscles is an important neural mechanism for hand control. To gain insight into the synaptic input underlying the coordination of hand muscles, significant effort has been devoted to describing the distribution of common input across motor units of extrinsic muscles. Much less is known, however, about the ...
متن کاملMuscle-pair specific distribution and grip-type modulation of neural common input to extrinsic digit flexors.
To gain insight into the synergistic control of hand muscles, we have recently quantified the strength of correlated neural activity across motor units from extrinsic digit flexors during a five-digit object-hold task. We found stronger synchrony and coherence across motor units from thumb and index finger flexor muscle compartment than between the thumb flexor and other finger flexor muscle co...
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40 Fingertip force control requires fine coordination of multiple hand muscles within 41 and across the digits. While the modulation of neural drive to hand muscles as a function 42 of force has been extensively studied, much less is known about the effects of fatigue on 43 the coordination of simultaneously active hand muscles. We asked eight subjects to 44 perform a fatiguing contraction by g...
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ژورنال
عنوان ژورنال: Journal of Neurophysiology
سال: 2004
ISSN: 0022-3077,1522-1598
DOI: 10.1152/jn.00516.2004