Local vibration induces changes in spinal and corticospinal excitability in vibrated and antagonist muscles
Nicolas Amiez, Alain Martin, Jérémie Gaveau, Sophie Julliand, Charalambos Papaxanthis, Christos Païzis
Abstract
Spinal disturbances confound the interpretation of excitability changes in motor areas and compromise the conclusions reached by previous studies using only a corticospinal marker for both vibrated and antagonist muscles. The time course recovery suggests that the H-reflex perturbations for the vibrated muscle do not only depend on changes in alpha motoneurons excitability. Local vibration induces neuromuscular changes in both vibrated and antagonist muscles at the spinal and cortical levels.
Topics & Concepts
Isometric exerciseMuscle spindleH-reflexStretch reflexReflexNeuroscienceInhibitory postsynaptic potentialElectrophysiologyMuscle contractionAnatomyMedicineChemistryPsychologyInternal medicineAfferentTranscranial Magnetic Stimulation StudiesSpinal Cord Injury ResearchMuscle activation and electromyography studies