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KMID : 1035420190070020133
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Journal of The Korean Society of Integrative Medicine
2019 Volume.7 No. 2 p.133 ~ p.139
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Effect of Different Air Hole Diameters of the Inspiratory Muscle Trainer on the Rating of Perceived Exertion and Inspiratory Muscle Activity during Breathing Exercise
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Shin A-Reum
Kim Ki-Song
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Abstract
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Purpose : This study aims to investigate the rating of perceived exertion (RPE) and muscle activity of the inspiratory primary and accessory muscle during breathing exercise with different air hole diameters of the inspiratory muscle trainer (IMT).
Methods : The Borg’s scale and surface electromyography (EMG) was used to collect data of the RPE and muscle activity of the inspiratory primary (the external intercostal [EI] and diaphragm [DIA]) and accessory muscles (anterior scalene [AS], sternocleidomastoid [SCM], pectoralis major [PM], and upper trapezius [UT] muscles) during breathing exercise with different air hole diameters (6mm, 4mm, and 2mm) of the IMT in healthy young male subjects.
Results : The RPE and muscle activities of the AS, SCM, and UT are increased significantly in accordance to the decreasing diameter of air hole of air tip in IMT. However, there are no differences in the muscle activities of the PM, EI, and DIA based on differences of diameters of air hole of air tip in IMT.
Conclusions : Further study would be necessary to investigate the proper intensity and relaxation posture for the exercise protocol to strengthen the inspiratory primary muscles.
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KEYWORD
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different diameters of air tip of inspiratory muscle trainer, inspiratory primary and accessory muscle, muscle activity, rating of perceived exertion
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