Department of Epidemiology, Faculty of Medical Sciences in Katowice, Medical University of Silesia in Katowice, 40-752 Katowice, Poland.
Department of Air Protection, Faculty of Energy and Environmental Engineering, Silesian University of Technology in Gliwice, 44-100 Gliwice, Poland.
Int J Environ Res Public Health. 2020 Dec 3;17(23):9012. doi: 10.3390/ijerph17239012.
During physical exercise, the absorbed dose of air pollutants increases. Acute effects of exposure to air pollutants during exercise in healthy young adults remain poorly documented. The aim of this study was to assess the acute responses in fractionated exhaled nitric oxide (FeNO) and blood pressure to air pollution exposure during exercise in young adults with different physical activity levels (low or high). In this study, 76 healthy university students participating in physical activity classes (low level of physical activity) and attending sports training (high level of physical activity) completed two indoor exercise trials when air pollutant concentrations were high (exposure trial) and when the quality of the air was good (control trial). We monitored indoor particulate matter with diameter <10 µm and <2.5 µm (PM and PM) and outdoor PM, nitric oxides (NO, NO, NO), and sulfur dioxide (SO) concentrations. Systolic and diastolic blood pressure (SBP and DBP), heart rate (HR), oxygen saturation (SpO) and FeNO were measured at baseline and after 45-60 min of physical activity. There were no significant differences between physiological responses to training performed under different exposure conditions in blood pressure, HR, and SpO. Significant positive correlations between post-exercise ΔFeNO during exposure trials and ambient air pollutants were found. FeNO increase during the exposure trial was associated with a higher physical activity level and higher outdoor PM and NO concentrations. In young and healthy adults, some differences in physiological responses to physical activity between polluted and control environments could be observed. Participants with a high physical activity level were more likely to have an increase in FeNO after exercise in a polluted environment but not after the control exercise trials.
在进行体育锻炼时,人体对空气污染物的吸收剂量会增加。目前,有关健康的年轻人在运动中接触空气污染物的急性影响的相关记录还很少。本研究旨在评估不同身体活动水平(低或高)的年轻人在运动中暴露于空气污染物时,分段呼出的一氧化氮(FeNO)和血压的急性反应。在这项研究中,76 名参加体育活动课程(低身体活动水平)和参加体育训练(高身体活动水平)的健康大学生完成了两次室内运动试验,分别在空气污染物浓度高(暴露试验)和空气质量好(对照试验)时进行。我们监测了室内细颗粒物(直径<10μm 和<2.5μm 的 PM 和 PM)和室外 PM、一氧化氮(NO、NO、NO)和二氧化硫(SO)浓度。在基线和 45-60 分钟的体育活动后,测量了收缩压和舒张压(SBP 和 DBP)、心率(HR)、血氧饱和度(SpO)和 FeNO。在不同暴露条件下进行训练时,血压、HR 和 SpO 的生理反应没有明显差异。在暴露试验中,运动后 ΔFeNO 与环境空气污染物之间存在显著的正相关。暴露试验期间 FeNO 的增加与较高的身体活动水平以及较高的室外 PM 和 NO 浓度有关。在年轻和健康的成年人中,在污染和对照环境中进行体育活动时,生理反应可能存在一些差异。在污染环境中运动后,身体活动水平较高的参与者更有可能出现 FeNO 增加,但在对照运动试验后则不会。