|Title:||Long-term potentiation at marrow level induced through EMG-biofeedback||Other Titles:||Incremento en la eficacia de las alfamotoneuronas inducido mediante biofeedback-EMG||Authors:||de Antonio-Palomero, A.
|UNESCO Clasification:||320507 Neurología||Keywords:||Circuit Of Renshaw
Motor Unit Potentials
Progressive Muscular Dystrophy
Nervios periféricos, et al
|Issue Date:||2001||Journal:||Revista de Neurologia||Abstract:||Introduction. The long-term potentiation (LTP) of synaptic transmission constitutes a remarkable example of synaptic plasticity, and represents a learning model. The LTP has been described by several authors in the hippocampus through high frequency stimulation. Objectives, patients and methods. In the present paper we have used conventional EMG-biofeedback techniques which aims at investigating the rehabilitation of myopathies and the electrophysiological mechanism of neuromuscular learning at marrow level. Three experimental patients of progressive muscular dystrophy, aged between I I and 15, were systematically treated with EMG-biofeedback in several muscular groups. Special attention is given to the records corresponding to rest post-maximum effort (RPME). Results. For the principal muscular groups rehabilitated it has been verified that the motor unit potentials corresponding to RPME show intense activity, with average amplitudes of 600-700 muV and duration close to 15 ms, against a practically nonexistent activity before rehabilitation. The descent of the alkaline phosphatase (from 200 U/l to 50 U/l) and the lactic-deshydrogenase Conclusions. The EMG-biofeedback techniques allow its to (from 320 U/l to 210 U/l) are specially significant physical efficiency inpatients of progressive muscular dystrophy. The analysis of post-biofeedback motor unit potentials, and the strong descent of the enzymes in the last phase of treatment, allows us to deduce the establishment of LTP between the alpha-motoneurons and the axonic terminals of the microneurons of Renshaw. The mechanism of the LTP at marrow level is interpreted through two physiological hypotheses concerning the circuit of Renshaw.||URI:||http://hdl.handle.net/10553/74292||ISSN:||0210-0010||DOI:||10.33588/rn.3312.2001002||Source:||Revista de Neurologia [ISSN 0210-0010], v. 33 (12), p. 1125-1128, (Diciembre 2001)|
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