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KMID : 1148720240120010035
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2024 Volume.12 No. 1 p.35 ~ p.40
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Effects of Measurement Posture on Pulmonary Function Test(PFT) Outcomes in Healthy Adult Males
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Shin Jung-Woo
Kim Sung-Tae
Lee Joon-Hee
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Abstract
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Purpose: This study aimed to determine whether forced vital capacity, forced expiratory volume in 1 s, forced expiratory volume in 1 s/forced vital capacity, maximum expiratory flow rate, and maximum inspiratory/expiratory pressure vary according to the test posture.
Methods: For this purpose, 30 healthy university students in their 20s were assessed in the supine position, 45° sitting position, and 90° sitting position for forced vital capacity, forced expiratory volume in 1 s, forced expiratory volume in 1 s/forced lung capacity, peak expiratory flow, maximum inspiratory/expiratory pressure, and the results were statistically analyzed using one-way analysis of variance and Bonferroni post-hoc test.
Results: A significant difference was found between the supine position, forced lung capacity, and forced expiratory volume in 1 s in 90° sitting position (p<.05); however, no significant difference was found between forced expiratory volume/forced vital capacity, peak expiratory flow, and maximal inspiratory/expiratory pressure in 1 s (p>.05).
Conclusion: The results showed that assessment in the supine or 45° sitting position rather than in the 90° sitting position affects breathing but not respiratory muscle strength.
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KEYWORD
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Maximal Inspiratory Pressure, Maximal Expiratory Pressure, Forced Vital Capacity, Forced Expiratory Volume at One Second, Posture
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