The changes of pulmonary function and pulmonary strength according to time of day: a preliminary study

• Rhee Min-Hyung

  Department of Rehabilitation Medicine, Pusan National University Hospital, Republic of Korea

• Kim Laurentius Jongsoon

  Department of Physical Therapy, College of Health Sciences, Catholic University of Pusan: 9 Bugok 3-dong, Geumjung-gu, Busan 609-757, Republic of Korea

抄録

[Purpose] The purpose of this study was to identify changes in pulmonary function and pulmonary strength according to time of day. [Subjects and Methods] The subjects were 20 healthy adults who had no cardiopulmonary-related diseases. Pulmonary function and pulmonary strength tests were performed on the same subjects at 9:00 am, 1:00 pm, and 5:00 pm. The pulmonary function tests included forced vital capacity (FVC), forced expiratory volume in 1 second (FEV₁), and forced expiratory flow between 25 and 75% of vital capacity (FEF_25–75%). Pulmonary strength tests assessed maximal inspiratory pressure (MIP) and maximal expiratory pressure (MEP). [Results] FEV1 showed statistically significant differences according to time of day. Other pulmonary function and pulmonary strength tests revealed no statistical differences in diurnal variations. [Conclusion] Our findings indicate that pulmonary function and pulmonary strength tests should be assessed considering the time of day and the morning dip phenomenon.

収録刊行物

• Ｊ　Ｐｈｙｓ　Ｔｈｅｒ　Ｓｃｉ

  Ｊ　Ｐｈｙｓ　Ｔｈｅｒ　Ｓｃｉ 27 (1), 19-21, 2015

  理学療法科学学会

キーワード

• Breathing
• Time of day
• Diurnal variations

詳細情報

• CRID: 1390282679306485504
• NII論文ID: 130004835068
• DOI: 10.1589/jpts.27.19
• ISSN: 21875626
• ISSN: 09155287
• Web Site: https://www.jstage.jst.go.jp/article/jpts/27/1/27_jpts-2014-299/_pdf
• Web Site: https://search.jamas.or.jp/link/ui/2016140941
• 本文言語コード: en
• データソース種別:
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  • Crossref
  • CiNii Articles
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