Clinical trial NCT04688502: Effects of Wearing a Face Mask During CrossFit Exercise
Official title: The Effects of Wearing a Face Mask During COVID-19 on Performance and Intensity Markers During CrossFit Exercise
Study type: INTERVENTIONAL
Overall status: WITHDRAWN
Phase: NA
Conditions: Dyspnea
Lead sponsor: University of Saskatchewan
Sponsor class: OTHER
First posted: 2020-12-30
Enrollment: 0
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: CROSSOVER
Primary purpose: PREVENTION

Brief summary: Face masks are important for prevention of transmission and contracting viruses such as COVID-19. Gymnasiums have been identified as being susceptible to virus transmission; therefore, wearing face masks during exercise is important during pandemics. This study will evaluate performance and physiological stress during high-intensity exercise while wearing a face mask during Crossfit exercise training.

Detailed description: Face masks are important for prevention of transmission and contracting viruses such as COVID-19. Gymnasiums have been identified as being susceptible to virus transmission; therefore, wearing face masks during exercise is important during pandemics. This study will evaluate performance and physiological stress during high-intensity exercise while wearing a face mask during Crossfit exercise training. Twenty-four men and women will be randomly assigned to perform exercise during Crossfit exercise while wearing or not wearing a surgical face mask in a cross-over study. Two types of exercise sessions will be assessed: A high intensity interval session and a continuous exercise session. There will therefore be four exercise sessions evaluated in our randomized cross-over design: 1) high intensity exercise while wearing a face mask; 2) high intensity exercise with no face mask; 3) continuous exercise while wearing a face mask; 4) continuous exercise with no face mask. Outcome variables to be assessed include exercise performance during the sessions (total repetitions for pull-ups, push-ups, and squats during continuous exercise and total repetitions for box jumps during high-intensity exercise). Heart rate, rating of perceived exertion, and dyspnea will also be assessed throughout the exercise sessions.

Eligibility criteria: Inclusion Criteria:

* Experienced with CrossFit exercise training

Exclusion Criteria:

* Contra-indications to exercise as identified by a screening questionnaire (the "Get Active Questionnaire")

Primary outcomes:
measure: Change from baseline in box jumps
timeFrame: Up to 30 minutes
measure: Change from baseline in pull-up, push-up, and squat repetitions
timeFrame: Up to 30 minutes
Secondary outcomes:
measure: Change from baseline in rating of perceived exertion
timeFrame: Up to 30 minutes
measure: Change from baseline in heart rate
timeFrame: Up to 30 minutes
measure: Change from baseline in dyspnea
timeFrame: Up to 30 minutes
Other outcomes:
Locations:
city: Saskatoon
country: Canada
facility: University of Saskatchewan
state: Saskatchewan
Study officials:
affiliation: University of Saskatchewan
name: Philip Chilibeck, Ph.D.
role: PRINCIPAL_INVESTIGATOR
affiliation: University of Saskatchewan
name: Scotty Butcher, Ph.D.
role: PRINCIPAL_INVESTIGATOR
References: