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Titolo:
THE ABILITY OF MUP PARAMETERS TO DISCRIMINATE BETWEEN NORMAL AND NEUROGENIC MUPS IN CONCENTRIC EMG - ANALYSIS OF THE MUP THICKNESS AND THE PROPOSAL OF SIZE INDEX
Autore:
SONOO M; STALBERG E;
Indirizzi:
TEIKYO UNIV,SCH MED,DEPT NEUROL,ITABASHI KU,KAGA 2-11-1 TOKYO TOKYO 173 JAPAN UNIV HOSP UPPSALA,DEPT CLIN NEUROPHYSIOL S-75185 UPPSALA SWEDEN
Titolo Testata:
Electroencephalography and clinical neurophysiology
fascicolo: 5, volume: 89, anno: 1993,
pagine: 291 - 303
SICI:
0013-4694(1993)89:5<291:TAOMPT>2.0.ZU;2-1
Fonte:
ISI
Lingua:
ENG
Soggetto:
MOTOR UNIT POTENTIALS; DIAGNOSTIC YIELD; NEUROMUSCULAR DISORDERS; ELECTRICAL-ACTIVITY; ELECTROMYOGRAPHY; MUSCLE; FEATURES; PATTERN;
Keywords:
QUANTITATIVE EMG ANALYSIS; MUP PARAMETERS; MUP THICKNESS; DISCRIMINANT ANALYSIS; SIZE INDEX;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
28
Recensione:
Indirizzi per estratti:
Citazione:
M. Sonoo e E. Stalberg, "THE ABILITY OF MUP PARAMETERS TO DISCRIMINATE BETWEEN NORMAL AND NEUROGENIC MUPS IN CONCENTRIC EMG - ANALYSIS OF THE MUP THICKNESS AND THE PROPOSAL OF SIZE INDEX", Electroencephalography and clinical neurophysiology, 89(5), 1993, pp. 291-303

Abstract

The ability of a motor unit potential (MUP) parameter or a set of parameters to discriminate between control MUPs and MUPs from muscles with severe to moderate inactive neurogenic changes was investigated using discriminant analysis. As a single parameter, area pave rather good discrimination, while amplitude, duration and area/amplitude did not give good discrimination. Only 15-30% of MUPs from neurogenic muscles were judged to be abnormal by duration alone. The combination of amplitude and the area/amplitude ratio (area/amp; MW thickness) improved thediscrimination considerably and around 70% of MUPs in the neurogenic group were judged to be abnormal. A simple assigned discriminant function, 2Xlog 10(amp)+ area/amp, gave similar good results for both biceps brachii and tibialis anterior muscles, and this value was named as ''size index. '' The experiment of manual scanning of an MUP revealed that area/amp increases, that is, the MUP becomes thicker, as the amplitude decreases for each MUP with increasing recording distance, while the size index remains almost constant for each MUP irrespective of theelectrode position. The new parameter, size index, is promising sinceit is more stable and gives better discrimination results than duration.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 07/07/20 alle ore 12:16:54