Immediate Effect of Expiratory Muscle Training on Voluntary Cough Intensity

• Published in: Rigaku ryoho kagaku Vol. 32; no. 6; pp. 793 - 796
• Main Authors: OBATAKE, Taishi, YOKOGAWA, Masami, NAKAGAWA, Takao
• Format: Journal Article
• Language: Japanese; English
• Published: The Society of Physical Therapy Science 2017
• Subjects: cough peak flow; expiratory muscle training; supine position
• ISSN: 1341-1667; 2434-2807
• DOI: 10.1589/rika.32.793

[Purpose] To examine the immediate effect of low-intensity expiratory muscle training (EMT) on the cough peak flow (CPF) as an index of voluntary cough intensity. [Subjects and Methods] EMT was performed in the supine position by 21 healthy males without a history of a respiratory or circulatory disorder or smoking, and their CPF was measured immediately after it. When performing EMT, the maximum expiratory pressure was set at 15% for loading, and the procedure was repeated 10, 20, and 30 times as 3 different conditions. [Results] Regardless of the number of repetitions, EMT improved the CPF immediately after it. The sense of fatigue was more marked when repeating the procedure 20 and 30 compared with 10 times. [Conclusion] It may be possible to increase the CPF while avoiding marked fatigue by repeating EMT 10 times with a maximum expiratory pressure of 15% for loading.