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J Phys Ther Sci. 2015 Oct;27(10):3155-7. doi: 10.1589/jpts.27.3155. Epub 2015 Oct 30.

The impact of the pelvic floor muscles on dynamic ventilation maneuvers.

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Department of Physical Therapy, Graduate School of Rehabilitation Science, Daegu University, Republic of Korea.
Department of Physical Therapy, College of Health Sciences, Catholic University of Busan, Republic of Korea.


[Purpose] The aim of the present study was to examine the impact of the pelvic floor muscles (PFM) on dynamic ventilation maneuvers. [Subjects and Methods] The subjects were 19 healthy female adults in their 20s who consented to participate in the present study. Electromyography (EMG) was used to examine respiratory muscle activity, and a spirometer was used to examine vital capacity before and during contraction of the PFM. [Results] There were statistically significant differences in the sternocleidomastoid (SCM), rectus abdominis (RA), external oblique (EO), transverse abdominis/internal oblique (TrA/IO), and maximal voluntary ventilation (MVV) when the PFM was contracted. [Conclusion] Contraction of the PFM can be effective in promoting activation of the respiratory muscles and vital capacity. Therefore, the PFM should be considered to improve the effects of respiratory activity.


Maximal voluntary ventilation; Pelvic floor muscles; Respiratory muscles

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