Posture and firmness changes in a pressure-relieving air mattress affect cough strength in elderly people with dysphagia

• Norimichi Kamikawa ,

  Contributed equally to this work with: Norimichi Kamikawa, Hironobu Hamada

  Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Project administration, Software, Supervision, Writing – original draft, Writing – review & editing

  Affiliations Department of Physical Analysis and Therapeutic Sciences, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan, Department of Rehabilitation, Faculty of Health Sciences, Hiroshima Cosmopolitan University, Hiroshima, Japan

  ⨯
• Hironobu Hamada ,

  Contributed equally to this work with: Norimichi Kamikawa, Hironobu Hamada

  Roles Conceptualization, Data curation, Formal analysis, Project administration, Supervision

  * E-mail: hirohamada@hiroshima-u.ac.jp

  Affiliation Department of Physical Analysis and Therapeutic Sciences, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan

  http://orcid.org/0000-0002-7979-0708

  ⨯
• Kiyokazu Sekikawa ,

  Roles Supervision

  ¶‡ These authors also contributed equally to this work.

  Affiliation Department of Physical Analysis and Therapeutic Sciences, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan

  ⨯
• Hikaru Yamamoto ,

  Roles Data curation

  ¶‡ These authors also contributed equally to this work.

  Affiliation Department of Physical Analysis and Therapeutic Sciences, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan

  ⨯
• Yoshiya Fujika ,

  Roles Data curation

  ¶‡ These authors also contributed equally to this work.

  Affiliation Department of Physical Analysis and Therapeutic Sciences, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan

  ⨯
• Teruki Kajiwara ,

  Roles Data curation

  ¶‡ These authors also contributed equally to this work.

  Affiliation Department of Physical Analysis and Therapeutic Sciences, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan

  ⨯
• Fumiya Aizawa ,

  Roles Data curation

  ¶‡ These authors also contributed equally to this work.

  Affiliation Department of Physical Analysis and Therapeutic Sciences, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan

  ⨯
• Ippo Otoyama

  Roles Data curation

  ¶‡ These authors also contributed equally to this work.

  Affiliation Department of Physical Analysis and Therapeutic Sciences, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan

  ⨯