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Updated: Dec 10, 2025

Effects of Surgical Masks on Cardiopulmonary Function in Healthy Subjects
Published on: February 12, 2021
[Mask use during high impact exercise in the pandemic.]
José Miguel Robles-Romero1, Gloria Conde Guillén2, Manuel Blanco Guillena3
1Facultad de Enfermería. Departamento de Enfermería. Universidad de Huelva. Huelva. España.
Wearing masks during high-intensity exercise is not recommended. Mask use can increase carbon dioxide (CO2) levels, potentially impacting respiratory physiology and exercise performance.
Area of Science:
- Exercise Physiology
- Respiratory Medicine
- Public Health
Background:
- Masks are a key measure against COVID-19.
- Their use during physical exercise, especially high-intensity, remains controversial.
- Understanding the physiological impact is crucial for safety and performance.
Purpose of the Study:
- To analyze the effects of mask usage on high-intensity physical exercise.
- To investigate the impact on respiratory physiology and gas exchange during exercise.
Main Methods:
- An exploratory review of scientific literature.
- Databases searched include PubMed, Scopus, Google Scholar, and CUIDEN.
Main Results:
- Masks can alter respiratory physiology during intense exercise.
- Effects on gas exchange, specifically carbon dioxide (CO2) levels, were examined.
- Increased breathing rate during exercise combined with mask use can elevate CO2 concentration.
Conclusions:
- Masks are not recommended for high-intensity physical exercise.
- Masks can enhance PCO2 by impeding CO2 expulsion.
- This physiological alteration may negatively affect exercise.
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