Presentation 2016-07-30
The relationship between diaphragmatic mechanomyogram and respiratory muscle strength
Shogo Watanabe, Shinichi Fukuhara, Takeshi Fujinaga, Hisao Oka,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Respiratory muscle strength has been used as a tool for evaluating respiratory rehabilitation in chronic obstructive pulmonary disease. However, mouth pressure measurement evaluated by maximum expiratory mouth pressure (PEmax) or inspiratory mouth pressure (PImax) offers an indirect method for measuring respiratory muscle strength. We demonstrated the evaluation of diaphragm contractility using a mechanomyogram (MMG), which is the mechanical signal generated by the motion of the diaphragm induced by the electric stimulation of the phrenic nerve. Study participants were 21 young and 20 elderly subjects. The elderly subjects were divided into non-smoker or smoker groups. We measured basic spirometric parameters, mouth pressure (PEmax, PImax), and diaphragmatic MMG. Diaphragmatic MMG showed more clear contrast between young subjects and elderly non-smoker or smoker subjects than the conventional method for respiratory muscle contraction (PEmax, PImax). In addition, the diaphragmatic MMG strongly correlated with inspiratory muscle strength.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) mechanomyogram / respiratory muscle strength / electric stimulation / smoking
Paper # MBE2016-20
Date of Issue 2016-07-23 (MBE)

Conference Information
Committee MBE
Conference Date 2016/7/30(1days)
Place (in Japanese) (See Japanese page)
Place (in English) Okayama University
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Yutaka Fukuoka(Kogakuin Univ.)
Vice Chair Kazuki Nakajima(Univ. of Toyama)
Secretary Kazuki Nakajima(Kogakuin Univ.)
Assistant Ryota Horie(Shibaura Inst. of Tech.) / Kim Juhyon(Univ. of Toyama)

Paper Information
Registration To Technical Committee on ME and Bio Cybernetics
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) The relationship between diaphragmatic mechanomyogram and respiratory muscle strength
Sub Title (in English)
Keyword(1) mechanomyogram
Keyword(2) respiratory muscle strength
Keyword(3) electric stimulation
Keyword(4) smoking
1st Author's Name Shogo Watanabe
1st Author's Affiliation Okayama University(Okayama Univ.)
2nd Author's Name Shinichi Fukuhara
2nd Author's Affiliation Okayama University(Okayama Univ.)
3rd Author's Name Takeshi Fujinaga
3rd Author's Affiliation Okayama University(Okayama Univ.)
4th Author's Name Hisao Oka
4th Author's Affiliation Okayama University(Okayama Univ.)
Date 2016-07-30
Paper # MBE2016-20
Volume (vol) vol.116
Number (no) MBE-170
Page pp.pp.25-28(MBE),
#Pages 4
Date of Issue 2016-07-23 (MBE)