Dyspnea
Conditions
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.
Interventions
OTHERHigh intensity interval training
High intensity interval training: 6 sets x 8 bench press, 10 pull-ups, and maximal number of box jumps (each set lasting 60 sec, with 4 minutes rest between sets)
5 pull-ups, 10 push-ups, and 15 body-weight squats, repeated for 30 minutes
Sponsors
University of Saskatchewan
Study design
Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
PREVENTION
Masking
SINGLE (Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes
Inclusion criteria
* Experienced with CrossFit exercise training
Exclusion criteria
* Contra-indications to exercise as identified by a screening questionnaire (the Get Active Questionnaire)
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Change from baseline in box jumps | Up to 30 minutes | Number of box jump repetitions during high intensity exercise |
| Change from baseline in pull-up, push-up, and squat repetitions | Up to 30 minutes | Number of repetitions performed for pull-ups, push-ups, and squats |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Change from baseline in rating of perceived exertion | Up to 30 minutes | Rating of perceived exertion on a scale of 1-10 (Modified Borg Scale), a higher score indicates a greater perceived exertion |
| Change from baseline in heart rate | Up to 30 minutes | Heart rate (beats per minute) |
| Change from baseline in dyspnea | Up to 30 minutes | Dyspnea scale (0-10), a higher score indicates increased dyspnea |
Countries
Canada
Outcome results
None listed