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. 2016 Apr;28(4):1147-9.
doi: 10.1589/jpts.28.1147. Epub 2016 Apr 28.

Differences in abdominal muscle activation during coughing between smokers and nonsmokers

Min-Hyung Rhee  1 , Dong-Rour Lee  2 , Laurentius Jongsoon Kim  2
Affiliations

Differences in abdominal muscle activation during coughing between smokers and nonsmokers

Min-Hyung Rhee et al. J Phys Ther Sci. 2016 Apr.

Abstract

[Purpose] The purpose of this study was to compare the activity of the abdominal muscles during coughing between smokers and nonsmokers. [Subjects] A total of 30 healthy adults (15 smokers, 15 nonsmokers) participated. [Methods] The percentage maximal voluntary isometric contraction values (%MVIC) of the rectus abdominis (RA), external abdominal oblique (EO), and internal abdominal oblique (IO) and transversus abdominis (TrA) were measured using surface electromyography. [Results] The %MVIC of the IO and TrA statistically significantly differed and the %MVIC of IO and TrA was found to be higher during coughing in nonsmokers compared with during coughing in smokers. [Conclusion] The activity of the deep abdominal muscles in nonsmokers was also higher than that of smokers during coughing.

Keywords: Abdominal muscle activation; Cough; Smoking.

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