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Titolo:
EARLY DEVELOPMENT OF EMG LOCALIZED MUSCLE FATIGUE IN HAND MUSCLES OF PATIENTS WITH CHRONIC HEART-FAILURE
Autore:
BUONOCORE M; OPASICH C; CASALE R;
Indirizzi:
REHABIL INST MONTESCANO,IRCCS,DEPT CLIN NEUROPHYSIOL,CONSIGLIO NAZL RIC I-27040 MONTESCANO PV ITALY REHABIL INST MONTESCANO,IRCCS,HEART FAILURE UNIT,SALVATORE MAUGERI FDN I-27040 MONTESCANO PV ITALY
Titolo Testata:
Archives of physical medicine and rehabilitation
fascicolo: 1, volume: 79, anno: 1998,
pagine: 41 - 45
SICI:
0003-9993(1998)79:1<41:EDOELM>2.0.ZU;2-#
Fonte:
ISI
Lingua:
ENG
Soggetto:
ELECTRICALLY ELICITED CONTRACTIONS; SUBMAXIMAL EXERCISE PERFORMANCE; SKELETAL-MUSCLE; ISOMETRIC CONTRACTIONS; FREQUENCY-ANALYSIS; NUTRITIVE FLOW; BLOOD-FLOW; VOLUNTARY; INTOLERANCE; SIGNAL;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
31
Recensione:
Indirizzi per estratti:
Citazione:
M. Buonocore et al., "EARLY DEVELOPMENT OF EMG LOCALIZED MUSCLE FATIGUE IN HAND MUSCLES OF PATIENTS WITH CHRONIC HEART-FAILURE", Archives of physical medicine and rehabilitation, 79(1), 1998, pp. 41-45

Abstract

Background: Patients with chronic heart failure (CHF) frequently complain of fatigue and exercise intolerance that are not directly relatedto the severity of cardiac failure. A not well-defined muscle function impairment is generally considered the cause of such symptoms. The frequency compression of electromyographic (EMG) signal power spectrum during isometric contractions is commonly accepted as an index of the fatigue occurring in the muscle (localized muscle fatigue). Purpose and Methods: The purpose of the study was to evaluate muscle fatigue development in a selected group of CHF patients by studying the compression of the EMG signal power spectrum. The first dorsal interosseus of the right, dominant hand was investigated at two levels of contraction:40% and 80% of the maximal voluntary contraction (MVC). Results: In CHF patients there was early development of localized muscle fatigue during the high level of contraction (80% of MVC). Conclusion: This study demonstrates the presence of an early development of localized muscle fatigue in CHF patients and confirms the possibility of an increasedglycolytic metabolism. Moreover, the changes seem to show that muscleimpairment is not limited to large muscles, but also occurs in small muscles of the hands, frequently used during daily activities. Finally, this study confirms the validity of EMC spectral analysis techniquesin evaluating muscle fatigue of CHF patients, suggesting a possible use in the rehabilitation of such patients when the technique is correctly used. (C) 1998 by the American Congress of Rehabilitation Medicineand the American Academy of Physical Medicine and Rehabilitation.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 12/08/20 alle ore 20:25:03