Kang Kyung Woo, Son Sung Min, Ko Yu Min
Department of Physical Therapy, College of Health and Therapy, Daegu Haany University, Daegu, Korea.
Department of Physical Therapy, College of Health Science, Cheongju University, Cheongju, Korea.
Osong Public Health Res Perspect. 2016 Dec;7(6):382-384. doi: 10.1016/j.phrp.2016.11.005. Epub 2016 Nov 15.
The purpose of this study was to quantify the time-varying changes in pulmonary function with exposure to prolonged sitting.
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.
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.
These findings suggest that significant changes in pulmonary function occur relatively quickly when human beings are seated.
本研究的目的是量化长时间坐着时肺功能随时间的变化。
招募了21名健康志愿者。为了评估随时间的变化，对所有参与者的肺功能进行了三次测量；在坐下前、参与者坐了1小时后以及坐了2小时后测量肺功能。使用肺活量计测量肺功能。记录的值为用力肺活量、1秒用力呼气量、1秒用力呼气量与用力肺活量的比值（1秒用力呼气量/用力肺活量）以及呼气峰值流速。
所有测量值在坐下前和坐1小时后均有显著差异。坐下前和坐2小时后的所有测量值之间也存在显著差异。然而，坐1小时和2小时后的测量值没有显著差异。
这些发现表明，人类坐着时肺功能会相对较快地发生显著变化。
