Respiratory muscle fatigue limiting physical exercise?

Détails

ID Serval
serval:BIB_2D390C8BCE74
Type
Article: article d'un périodique ou d'un magazine.
Sous-type
Synthèse (review): revue aussi complète que possible des connaissances sur un sujet, rédigée à partir de l'analyse exhaustive des travaux publiés.
Collection
Publications
Institution
Titre
Respiratory muscle fatigue limiting physical exercise?
Périodique
European Respiratory Journal
Auteur⸱e⸱s
Fitting J.W.
ISSN
0903-1936[print], 0903-1936[linking]
Statut éditorial
Publié
Date de publication
1991
Volume
4
Numéro
1
Pages
103-108
Langue
anglais
Notes
Publication types: Journal Article ; Review Publication Status: ppublish
Résumé
Inspiratory muscle fatigue has been documented during loaded breathing or acute respiratory failure, but its role in exercise limitation is still undetermined. Electromyographic (EMG) signs of diaphragmatic fatigue develop in normal subjects hyperventilating above 70% of maximal voluntary ventilation (MVV), a ventilatory level commonly attained at peak exercise. EMG signs of diaphragmatic fatigue also occur during high power cycling exercise in normal subjects and chronic obstructive pulmonary disease (COPD) patients. However, a loss of respiratory muscle strength has rarely been documented following strenuous physical exercise with techniques independent of the subjects' collaboration. Prior inspiratory muscle fatigue decreases exercise tolerance in normal subjects but its effect is largely unknown in COPD patients. Respiratory muscle rest by negative pressure ventilation was reported to improve exercise tolerance in COPD, but this beneficial effect was not confirmed by controlled studies. The effect of inspiratory muscle training on exercise tolerance is still undefined by existing data, in part because of differences in methods and selection criteria between studies. Although respiratory muscle fatigue may occur during exercise, it is not clearly established whether interventions directed at respiratory muscles may improve exercise tolerance in COPD.
Mots-clé
Electromyography, Exercise/physiology, Humans, Lung Diseases, Obstructive/physiopathology, Muscle Contraction/physiology, Physical Endurance/physiology, Respiratory Muscles/physiopathology
Pubmed
Web of science
Création de la notice
25/01/2008 10:43
Dernière modification de la notice
20/08/2019 14:12
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