Abnormal spinal interactions from hand afferents to forearm muscles in writer's cramp.

@article{Loureno2007AbnormalSI,
  title={Abnormal spinal interactions from hand afferents to forearm muscles in writer's cramp.},
  author={George Lourenço and J P Bleton and Caroline Iglesias and Marie Vidailhet and V{\'e}ronique Marchand-Pauvert},
  journal={Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology},
  year={2007},
  volume={118 10},
  pages={2215-26}
}
OBJECTIVE Spinal reflexes from hand to wrist muscles were investigated in writer's cramp. METHODS Stimulus-triggered rectified EMG averages after ulnar nerve and cutaneous stimulation, in wrist flexors and extensors during tonic contraction, were compared in 18 controls and 19 patients. RESULTS On the patient dystonic side, ulnar-induced EMG suppression was decreased in wrist extensors, and facilitation in wrist flexors modified dependent on the dystonic wrist posture during writing. No… CONTINUE READING