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30 May 2022: Clinical Research

Effects of Wearing Face Masks on Exercise Capacity and Ventilatory Anaerobic Threshold in Healthy Subjects During the COVID-19 Epidemic

Qiang Lin 1BCDEF , Yuxing Cai 1BC , Changjun Yu 1BC , Wei Gu 2CD , Yan Tan 2CD , Li Wang 2CD , Anliang Chen 1E , Kai Cheng 1F , Ting Meng 3F , Xueping Li 1AG*

DOI: 10.12659/MSM.936069

Med Sci Monit 2022; 28:e936069

Table 3 Comparison of VAT indexes of 2 exercise tests between the 2 groups.

Indexes at VATWithout maskP value*With maskP value**
VS Group (n=20)VA Group (n=14)VS Group (n=20)VA Group (n=14)
WR (Watts)85.7±19.981.9±22.20.60885.9±19.462.8±22.80.003
VO/kg (ml/kg/min)14.0 ±2.414.3±2.90.71814.5±2.911.5±3.00.006
HR (bpm)132.8±14.1134.7±15.10.700131.3±14.3124.1±14.60.167
VE (l/min)21.6±4.220.6±5.60.53019.0±4.014.6±4.50.005
VT (l/min)1.05±0.31.05±0.330.9731.15±0.370.96±0.460.187
BF (bpm)21.5±4.620.7±6.20.67517.5±4.217.1±6.10.831
PETCO (mmHg)42.5±4.143.0±3.00.70844.17±4.3641.9±3.00.106
Data are presented as mean±SD.
* values for group test between the VS and the VA groups without mask;
** values for group test between the VS and the VA groups with mask.
VAT – ventilatory anaerobic threshold; VS Group – stable VAT group; VA Group – advanced VAT group; WR – work rate; VO/kg – oxygen consumption per kg body weight; HR – heart rate; VE – ventilation per minute; VT – tidal volume; BF – breath frequency; VD/VT – dead space ratio; VE/VCO – carbon dioxide ventilation equivalent; PETCO – end-tidal CO pressure.

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Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750