학술논문
Activation of respiratory muscles during respiratory muscle training.
Document Type
Academic Journal
Author
Walterspacher S; Department of Pneumology, Cardiology and Intensive Care Medicine, Academic Teaching Hospital Konstanz, Luisenstr. 7, 78464 Konstanz, Germany; Department of Pneumology and Internal Medicine, University Witten-Herdecke, Alfred-Herrhausen-Straße 50, 58448 Witten, Germany. Electronic address: stephan.walterspacher@glkn.de.; Pietsch F; Department of Internal Medicine, Hospital Buchholz and Winsen, Steinbecker Str. 44, 21244 Buchholz, Germany.; Walker DJ; Department of Pneumology, Cardiology and Intensive Care Medicine, Academic Teaching Hospital Konstanz, Luisenstr. 7, 78464 Konstanz, Germany; Department of Pneumology and Internal Medicine, University Witten-Herdecke, Alfred-Herrhausen-Straße 50, 58448 Witten, Germany.; Röcker K; Department of Rehabilitative and Sports Medicine, University Hospital Freiburg, Hugstetterstr. 55, 79106 Freiburg, Germany; Department of Applied Public Health (AGW), Furtwangen University, Robert-Gerwig-Platz 1, 78120 Furtwangen, Germany.; Kabitz HJ; Department of Pneumology, Cardiology and Intensive Care Medicine, Academic Teaching Hospital Konstanz, Luisenstr. 7, 78464 Konstanz, Germany.
Source
Publisher: Elsevier Science Country of Publication: Netherlands NLM ID: 101140022 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1878-1519 (Electronic) Linking ISSN: 15699048 NLM ISO Abbreviation: Respir Physiol Neurobiol Subsets: MEDLINE
Subject
Language
English
Abstract
It is unknown which respiratory muscles are mainly activated by respiratory muscle training. This study evaluated Inspiratory Pressure Threshold Loading (IPTL), Inspiratory Flow Resistive Loading (IFRL) and Voluntary Isocapnic Hyperpnea (VIH) with regard to electromyographic (EMG) activation of the sternocleidomastoid muscle (SCM), parasternal muscles (PARA) and the diaphragm (DIA) in randomized order. Surface EMG were analyzed at the end of each training session and normalized using the peak EMG recorded during maximum inspiratory maneuvers (Sniff nasal pressure: SnPna, maximal inspiratory mouth occlusion pressure: PImax). 41 healthy participants were included. Maximal activation was achieved for SCM by SnPna; the PImax activated predominantly PARA and DIA. Activations of SCM and PARA were higher in IPTL and VIH than for IFRL (p<0.05). DIA was higher applying IPTL compared to IFRL or VIH (p<0.05). IPTL, IFRL and VIH differ in activation of inspiratory respiratory muscles. Whereas all methods mainly stimulate accessory respiratory muscles, diaphragm activation was predominant in IPTL.
(Copyright © 2017 Elsevier B.V. All rights reserved.)
(Copyright © 2017 Elsevier B.V. All rights reserved.)