Peripheral Oxygen Saturations Among Healthy Young Adults Wearing Face Masks Whilst Exercising

The investigators will conduct a crossover study comparing three different types of face mask (cloth, surgical or filtering facepiece respirator - FFR) versus no face mask to determine the effect on oxygen saturations, heart rate and symptoms of healthy young adults during 15 minutes of moderate to high intensity exercise. The investigators will promote the study through sports societies at three leading United Kingdom (UK) universities, namely the University of Oxford, University of Nottingham and King's College London. The investigators will also advertise the study on social media.

Interested individuals will be encouraged to visit the study website or read the patient information sheets available to share via email. Volunteer participants will be asked to read the eligibility criteria, patient information sheet and recruitment information before applying to take part. Those who wish to participate will be asked to complete an online form, including their first name, date of birth, address, email address, demographics, details of their regular exercise and details of any past medical history or medication.

Those wishing to discuss the study will have the opportunity to request a phone call from a member of the study team before agreeing to take part.

Submitted applications will be screened by the study team for eligibility. Those who are deemed not to be eligible will be contacted, explaining the reason. Selected participants will be informed and contacted to arrange a date for the study session. This will be conducted at their local university sports centre or a local park. The number of participants attending a single study session will be in compliance with any UK government restrictions relating to COVID-19 in place at that time.

On the day of the study, participants will meet a member of the study team, who will ask them to complete an online consent form.