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KMID : 1120220160070060382
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Osong Public Health and Research Perspectives
2016 Volume.7 No. 6 p.382 ~ p.384
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Time-varying Changes in Pulmonary Function with Exposure to Prolonged Sitting
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Kang Kyung-Woo
Son Sung-Min
Ko Yu-Min
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Abstract
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Objectives: The purpose of this study was to quantify the time-varying changes in pulmonary function with exposure to prolonged sitting.
Methods: Twenty-one healthy volunteers were recruited. The pulmonary function of all participants was measured three times in order to assess changes over time; pulmonary function was measured before sitting, after participants had been seated for 1 hour, and after they had been seated for 2 hours. A spirometer was used to measure pulmonary function. The recorded values were forced vital capacity, forced expiratory volume in 1 second, ratio of forced expiratory volume in 1 second to forced vital capacity (forced expiratory volume in 1 second/forced vital capacity), and peak expiratory flow.
Results: All measured values were significantly different before sitting and after 1 hour of sitting. There were also significant differences between all measurements taken before sitting and after 2 hours of sitting. However, the measurements taken after 1 hour and 2 hours of sitting did not significantly differ.
Conclusion: These findings suggest that significant changes in pulmonary function occur relatively quickly when human beings are seated.
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KEYWORD
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prolonged sitting, pulmonary function, spirometer
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