Immediate effects of respiratory muscle stretching on chest wall kinematics and electromyography in COPD patients.

Autor: de Sá RB; Department of Physical Therapy, Federal of Pernambuco University, Recife, Pernambuco, Brazil., Pessoa MF; Department of Physical Therapy, Federal of Pernambuco University, Recife, Pernambuco, Brazil., Cavalcanti AGL; Department of Physical Therapy, Federal of Pernambuco University, Recife, Pernambuco, Brazil., Campos SL; Department of Physical Therapy, Federal of Pernambuco University, Recife, Pernambuco, Brazil., Amorim C; City University of São Paulo, São Paulo, Brazil., Dornelas de Andrade A; Department of Physical Therapy, Federal of Pernambuco University, Recife, Pernambuco, Brazil. Electronic address: armeledornelas@yahoo.com.
Jazyk: angličtina
Zdroj: Respiratory physiology & neurobiology [Respir Physiol Neurobiol] 2017 Aug; Vol. 242, pp. 1-7. Date of Electronic Publication: 2017 Mar 10.
DOI: 10.1016/j.resp.2017.03.002
Abstrakt: This study evaluated the immediate effects of respiratory muscle stretching on chest wall kinematics and electromyographic activity in COPD patients. 28 patients with COPD were randomized into two groups: 14 to the treatment group (TG) and 14 to the control group (CG). The TG underwent a stretching protocol of the rib cage muscles, while the CG remained at rest under similar conditions. After a single session, TG increased the tidal volume of the pulmonary rib cage (Vrcp) (p=0.020) and tidal volume of abdominal rib cage (Vrca) (p=0.043) variations and their percentages in relation to the thoracic wall, Vrcp% (p=0.044) and Vrca% (p=0.022). Also, TG decreased the end-expiratory Vrcp (p=0.013) and the end-inspiratory Vrcp (p=0.011) variations. In addition, there was a reduction in respiratory rate (RR) (p=0.011) and minute volume (MV) (p=0.035), as well as an increase in expiratory time (Te) (p=0.026). There was also an immediate reduction in sternocleidomastoid (p=0.043) and upper trapezium (p=0.034) muscle electrical activity. Then, the study supports the use of stretching to improve COPD chest wall mobility with positive effects on chest wall mechanics, on volume distribution and electromyography.
(Copyright © 2017 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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