DyspneaNCT04688502
Effects of Wearing a Face Mask During CrossFit Exercise
A study testing High intensity interval training and Continuous exercise training in people with Dyspnea, run by University of Saskatchewan at 1 site in Canada.
Trial 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. Read more about this study
- Who is it for?
- Ages 18 years and olderHealthy volunteers can take part
- Conditions the study is for
- Dyspnea
- What is being tested?
- High intensity interval training and Continuous exercise training
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 0 participants
- Where
- 1 siteCanada
- Study dates
- 11 Jun 2022to 15 Feb 2023
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- Experienced with CrossFit exercise training
Who cannot join
- Contra-indications to exercise as identified by a screening questionnaire (the "Get Active Questionnaire")
Trial locations and contacts
1 site in 1 country.
About this study
Official title: The Effects of Wearing a Face Mask During COVID-19 on Performance and Intensity Markers During CrossFit Exercise
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.
Read the 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.
- Conditions
- Dyspnea
- Being tested
- High intensity interval training, Continuous exercise training
- Medical subject headings
- Dyspnea
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
High intensity interval trainingOther
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)
Continuous exercise trainingOther
5 pull-ups, 10 push-ups, and 15 body-weight squats, repeated for 30 minutes
| Study group | Role | What they receive |
|---|---|---|
| high intensity interval training wearing a face mask | Experimental | high intensity interval training wearing a face mask Receives: Other: High intensity interval training |
| high intensity interval training wearing no face mask | Active comparator | high intensity interval training wearing no face mask Receives: Other: High intensity interval training |
| continuous exercise training wearing a face mask | Experimental | continuous exercise training wearing a face mask Receives: Other: Continuous exercise training |
| continuous exercise training wearing no face mask | Active comparator | continuous exercise training wearing no face mask Receives: Other: Continuous exercise training |
What is being measured
The primary outcome is the main question the study is designed to answer.
Change from baseline in box jumps
Number of box jump repetitions during high intensity exercise
Measured: 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
Measured: Up to 30 minutes
Secondary outcomes (3)
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
Measured: Up to 30 minutes
Change from baseline in heart rate
Heart rate (beats per minute)
Measured: Up to 30 minutes
Change from baseline in dyspnea
Dyspnea scale (0-10), a higher score indicates increased dyspnea
Measured: Up to 30 minutes
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted30 Dec 2020
- Study start11 Jun 2022 (estimated)
- Primary completion28 Jan 2023 (estimated)
- Study completion15 Feb 2023 (estimated)
Why it stopped: It was not feasible for us to run this study
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for DyspneaStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- Single blind
- Who is masked
- Outcomes assessor
- Enrolment
- 0 participants (actual)
Sponsor and investigators
- Lead sponsor
- University of Saskatchewan
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Phil Chilibeck, University of Saskatchewan
- Investigators
- Philip Chilibeck, Ph.D., Principal investigator, University of SaskatchewanScotty Butcher, Ph.D., Principal investigator, University of Saskatchewan
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04688502
- Sponsor's protocol ID
- 2431
- Status last verified
- Apr 2025
- First submitted
- 24 Dec 2020
- Last updated
- 24 Apr 2025
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Study at a glance
From the registry record, last updated by the sponsor on 24 Apr 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- The Effects of Wearing a Face Mask During COVID-19 on Performance and Intensity Markers During CrossFit Exercise
- ClinicalTrials.gov ID
- NCT04688502
- Acronym / sponsor ID
- 2431
- Conditions
- Dyspnea
- Study type
- Interventional
- Recruitment status
- WithdrawnReason stopped: It was not feasible for us to run this study
- Enrolment
- 0 participants (actual)
- Lead sponsor
- University of SaskatchewanUniversity, hospital or other
- Study start
- 11 Jun 2022 (estimated)
- Primary completion
- 28 Jan 2023 (estimated)
- Study completion
- 15 Feb 2023 (estimated)
- First posted
- 30 Dec 2020 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
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.
Study design
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- Single blind (outcomes assessor)
- Number of arms
- 4
| Arm | Type | Receives |
|---|---|---|
| high intensity interval training wearing a face mask | Experimental | Other: High intensity interval traininghigh intensity interval training wearing a face mask |
| high intensity interval training wearing no face mask | Active comparator | Other: High intensity interval traininghigh intensity interval training wearing no face mask |
| continuous exercise training wearing a face mask | Experimental | Other: Continuous exercise trainingcontinuous exercise training wearing a face mask |
| continuous exercise training wearing no face mask | Active comparator | Other: Continuous exercise trainingcontinuous exercise training wearing no face mask |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (1 listed)
- Experienced with CrossFit exercise training
Key exclusion criteria (1 listed)
- Contra-indications to exercise as identified by a screening questionnaire (the "Get Active Questionnaire")
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| High intensity interval trainingHigh 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) | Other | high intensity interval training wearing a face mask, high intensity interval training wearing no face mask |
| Continuous exercise training5 pull-ups, 10 push-ups, and 15 body-weight squats, repeated for 30 minutes | Other | continuous exercise training wearing a face mask, continuous exercise training wearing no face mask |
Primary outcome
Change from baseline in box jumps
Time frame: Up to 30 minutes
Number of box jump repetitions during high intensity exercise
Change from baseline in pull-up, push-up, and squat repetitions
Time frame: Up to 30 minutes
Number of repetitions performed for pull-ups, push-ups, and squats
3 secondary outcomes
Change from baseline in rating of perceived exertion
Time frame: Up to 30 minutes
Change from baseline in heart rate
Time frame: Up to 30 minutes
Change from baseline in dyspnea
Time frame: Up to 30 minutes
Results and safety
The study was withdrawn before enrolling participants, so there are no results.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 24 Apr 2025.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Philip Chilibeck, Ph.D. principal investigator
University of Saskatchewan
Scotty Butcher, Ph.D. principal investigator
University of Saskatchewan
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing High intensity interval training and Continuous exercise training in people with Dyspnea, run by University of Saskatchewan at 1 site in Canada.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: withdrawn, as of the sponsor's last update on 24 Apr 2025. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Canada. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study was withdrawn before enrolling participants, so there are no results.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Change from baseline in box jumps (time frame: Up to 30 minutes). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 24 Apr 2025.