Effects of surgical face masks on cardiopulmonary parameters during steady state exercise.
Effects of surgical face masks on cardiopulmonary parameters during steady state exercise.
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DOI：
10.1038/s41598-020-78643-1
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发表时间：
2020-12-21
影响因子：
4.6
通讯作者：
Busse M
中科院分区：
文献类型：
--
作者：
Lässing J;Falz R;Pökel C;Fikenzer S;Laufs U;Schulze A;Hölldobler N;Rüdrich P;Busse M
戴口罩会降低体能发挥。运动和职业活动通常与次最大恒定强度有关。这项前瞻性交叉研究考察了医用口罩在恒定负荷运动中的作用。14名健康男性（年龄25.7±3.5岁，身高183.8±8.4 cm，体重83.6±8.4 kg）分别进行了乳酸最低值试验和戴口罩和不戴口罩的体体积脉搏图检测。他们被随机分配到两个恒定负荷试验，在最大乳酸稳定状态下，带和不带面罩。心肺和代谢反应监测采用阻抗心动图和肺活量测定法。使用外科口罩（SM）的气道阻力比未使用口罩的气道阻力高2倍（SM为0.58±0.16 kPa l−1，对照组为0.32±0.08 kPa l−1,p < 0.01）。戴口罩与不戴口罩的恒负荷试验导致通气（77.1±9.3 l min - 1 vs 82.4±10.7 l min - 1, p < 0.01）、摄氧量（33.1±5 ml min - 1 kg - 1 vs 34.5±6 ml min - 1 kg - 1, p = 0.04）和心率（160.1±11.2 bpm vs 154.5±11.4 bpm, p < 0.01）有显著差异。戴口罩时平均心输出量更高（28.6±3.9 l min - 1 vs. 25.9±4.0 l min - 1; p = 0.06）。戴口罩和不戴口罩观察到相似的血压（177.2±17.6 mmHg vs. 172.3±15.8 mmHg, p = 0.33）、乳酸δ（4.7±1.5 mmol l−1 vs. 4.3±1.5 mmol l−1,p = 0.15）和感知劳累等级（6.9±1.1 vs. 6.6±1.1,p = 0.16）。在健康志愿者的稳定状态运动中，外科口罩增加气道阻力和心率。感知运动和耐力表现没有变化。这些结果可能会改善在工作和体育训练期间佩戴口罩的评估。
Wearing face masks reduce the maximum physical performance. Sports and occupational activities are often associated with submaximal constant intensities. This prospective crossover study examined the effects of medical face masks during constant-load exercise. Fourteen healthy men (age 25.7 ± 3.5 years; height 183.8 ± 8.4 cm; weight 83.6 ± 8.4 kg) performed a lactate minimum test and a body plethysmography with and without masks. They were randomly assigned to two constant load tests at maximal lactate steady state with and without masks. The cardiopulmonary and metabolic responses were monitored using impedance cardiography and ergo-spirometry. The airway resistance was two-fold higher with the surgical mask (SM) than without the mask (SM 0.58 ± 0.16 kPa l−1 vs. control [Co] 0.32 ± 0.08 kPa l−1; p < 0.01). The constant load tests with masks compared with those without masks resulted in a significantly different ventilation (77.1 ± 9.3 l min−1 vs. 82.4 ± 10.7 l min−1; p < 0.01), oxygen uptake (33.1 ± 5 ml min−1 kg−1 vs. 34.5 ± 6 ml min−1 kg−1; p = 0.04), and heart rate (160.1 ± 11.2 bpm vs. 154.5 ± 11.4 bpm; p < 0.01). The mean cardiac output tended to be higher with a mask (28.6 ± 3.9 l min−1 vs. 25.9 ± 4.0 l min−1; p = 0.06). Similar blood pressure (177.2 ± 17.6 mmHg vs. 172.3 ± 15.8 mmHg; p = 0.33), delta lactate (4.7 ± 1.5 mmol l−1 vs. 4.3 ± 1.5 mmol l−1; p = 0.15), and rating of perceived exertion (6.9 ± 1.1 vs. 6.6 ± 1.1; p = 0.16) were observed with and without masks. Surgical face masks increase airway resistance and heart rate during steady state exercise in healthy volunteers. The perceived exertion and endurance performance were unchanged. These results may improve the assessment of wearing face masks during work and physical training.
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作者：
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DOI：
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发表时间：
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DOI：
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发表时间：
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期刊：
MEDICINE AND SCIENCE IN SPORTS AND EXERCISE
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