Effects of surgical and FFP2/N95 face masks on cardiopulmonary exercise capacity
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ORIGINAL PAPER
Effects of surgical and FFP2/N95 face masks on cardiopulmonary exercise capacity Sven Fikenzer1 · T. Uhe1 · D. Lavall1 · U. Rudolph1 · R. Falz2 · M. Busse2 · P. Hepp3 · U. Laufs1 Received: 27 May 2020 / Accepted: 30 June 2020 © The Author(s) 2020
Abstract Background Due to the SARS-CoV2 pandemic, medical face masks are widely recommended for a large number of individuals and long durations. The effect of wearing a surgical and a FFP2/N95 face mask on cardiopulmonary exercise capacity has not been systematically reported. Methods This prospective cross-over study quantitated the effects of wearing no mask (nm), a surgical mask (sm) and a FFP2/N95 mask (ffpm) in 12 healthy males (age 38.1 ± 6.2 years, BMI 24.5 ± 2.0 kg/m2). The 36 tests were performed in randomized order. The cardiopulmonary and metabolic responses were monitored by ergo-spirometry and impedance cardiography. Ten domains of comfort/discomfort of wearing a mask were assessed by questionnaire. Results The pulmonary function parameters were significantly lower with mask (forced expiratory volume: 5.6 ± 1.0 vs 5.3 ± 0.8 vs 6.1 ± 1.0 l/s with sm, ffpm and nm, respectively; p = 0.001; peak expiratory flow: 8.7 ± 1.4 vs 7.5 ± 1.1 vs 9.7 ± 1.6 l/s; p
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