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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.
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.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| high intensity interval training wearing a face mask | Experimental | high intensity interval training wearing a face mask |
|
| high intensity interval training wearing no face mask | Active Comparator | high intensity interval training wearing no face mask |
|
| continuous exercise training wearing a face mask | Experimental | continuous exercise training wearing a face mask |
|
| continuous exercise training wearing no face mask | Active Comparator | continuous exercise training wearing no face mask |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| High intensity interval training | Other | 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) |
| Measure | Description | Time Frame |
|---|---|---|
| Change from baseline in box jumps | Number of box jump repetitions during high intensity exercise | Up to 30 minutes |
| Change from baseline in pull-up, push-up, and squat repetitions | Number of repetitions performed for pull-ups, push-ups, and squats | Up to 30 minutes |
| Measure | Description | Time Frame |
|---|---|---|
| Change from baseline in rating of perceived exertion | Rating of perceived exertion on a scale of 1-10 (Modified Borg Scale), a higher score indicates a greater perceived exertion | Up to 30 minutes |
| Change from baseline in heart rate |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Philip Chilibeck, Ph.D. | University of Saskatchewan | Principal Investigator |
| Scotty Butcher, Ph.D. | University of Saskatchewan | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| University of Saskatchewan | Saskatoon | Saskatchewan | S7N5B2 | Canada |
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| ID | Term |
|---|---|
| D004417 | Dyspnea |
| ID | Term |
|---|---|
| D012120 | Respiration Disorders |
| D012140 | Respiratory Tract Diseases |
| D012818 | Signs and Symptoms, Respiratory |
| D012816 | Signs and Symptoms |
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| ID | Term |
|---|---|
| D000072696 | High-Intensity Interval Training |
| ID | Term |
|---|---|
| D064797 | Physical Conditioning, Human |
| D015444 | Exercise |
| D009043 | Motor Activity |
| D009068 | Movement |
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| Continuous exercise training | Other | 5 pull-ups, 10 push-ups, and 15 body-weight squats, repeated for 30 minutes |
|
Heart rate (beats per minute)
| Up to 30 minutes |
| Change from baseline in dyspnea | Dyspnea scale (0-10), a higher score indicates increased dyspnea | Up to 30 minutes |
| D013568 | Pathological Conditions, Signs and Symptoms |
| D009142 |
| Musculoskeletal Physiological Phenomena |
| D055687 | Musculoskeletal and Neural Physiological Phenomena |