Voluntary and reflex cough: Similarities and differences
نویسندگان
چکیده
منابع مشابه
COUGH Differences in motor activation of voluntary and reflex cough in humans
Objectives: To study motor activation patterns of voluntary and reflex cough adjusted for cough flow rates. Methods: Surface electromyography (EMG) and cough flow rate were measured in 10 healthy volunteers. Voluntary cough was assessed for 20 efforts in each quintile of increasing cough flow rate. Reflex cough was assessed for 25 efforts produced by nebulised L-tartaric acid. EMG was recorded ...
متن کاملRespiratory kinematic and airflow differences between reflex and voluntary cough in healthy young adults
BACKGROUND Cough is a defensive behavior that can be initiated in response to a stimulus in the airway (reflexively), or on command (voluntarily). There is evidence to suggest that physiological differences exist between reflex and voluntary cough; however, the output (mechanistic and airflow) differences between the cough types are not fully understood. Therefore, the aims of this study were t...
متن کاملIntra-abdominal Pressures during Voluntary and Reflex Cough
BACKGROUND Involuntary coughing such as that evoked from the larynx, the laryngeal cough reflex (LCR), triggers a coordinated contraction of the thoracic, abdominal and pelvic muscles, which increases intra-abdominal pressure (IAP), displaces the diaphragm upwards and generates the expiratory force for cough and airway clearance. Changes in the IAP during voluntary cough (VC) and the LCR can be...
متن کاملDifferences in motor activation of voluntary and reflex cough in humans.
OBJECTIVES To study motor activation patterns of voluntary and reflex cough adjusted for cough flow rates. METHODS Surface electromyography (EMG) and cough flow rate were measured in 10 healthy volunteers. Voluntary cough was assessed for 20 efforts in each quintile of increasing cough flow rate. Reflex cough was assessed for 25 efforts produced by nebulised l-tartaric acid. EMG was recorded ...
متن کاملComparison of voluntary and reflex cough effectiveness in Parkinson's disease.
INTRODUCTION Multiple airway protective mechanisms are impacted with Parkinson's disease (PD), including swallowing and cough. Cough serves to eject material from the lower airways, and can be produced voluntarily (on command) and reflexively in response to aspirate material or other airway irritants. Voluntary cough effectiveness is reduced in PD however it is not known whether reflex cough is...
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ژورنال
عنوان ژورنال: Pulmonary Pharmacology & Therapeutics
سال: 2011
ISSN: 1094-5539
DOI: 10.1016/j.pupt.2011.01.007