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Impact of precision grip tasks on cervical spinal network excitability in humans
Author(s) -
Roche N.,
Bussel B.,
Maier M. A.,
Katz R.,
Lindberg P.
Publication year - 2011
Publication title -
the journal of physiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.802
H-Index - 240
eISSN - 1469-7793
pISSN - 0022-3751
DOI - 10.1113/jphysiol.2011.206268
Subject(s) - neuroscience , task (project management) , motor system , psychology , physical medicine and rehabilitation , motor control , hand muscles , medicine , management , economics
Non technical summary Motor skill acquisition may induce modifications of spinal network excitability. We studied the impact of two different precision grip force control tasks on cervical spinal network excitability in healthy subjects. The results show that the nature of the motor task performed has a specific impact on the excitability of these cervical spinal circuits and that presynaptic Ia inhibition may play an important role for acquisition of a new motor task. The results strongly suggest that early motor adaptations induced by a motor task are not only cortical but also spinal in origin.