Effects of Surgical Mask Use on Peak Torque, Total Work and Interset Fatigability During Isokinetic Strength Testing
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ClinicalTrials.gov Identifier: NCT04706299 |
Recruitment Status :
Completed
First Posted : January 12, 2021
Last Update Posted : May 24, 2021
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Condition or disease | Intervention/treatment | Phase |
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Prevention of COVID-19 | Other: Resistance Exercise | Not Applicable |
Despite the accumulating evidence supporting the favorable impact and potentially life-saving benefits of routine public mask wearing has on lowering the risk of COVID-19 transmission, recommendations for mask use have been met with resistance by some individuals. With the numerous health benefits greatly outweighing the document complaints of discomfort and headaches, it becomes puzzling why there is not universal support for these recommendations made by experts. Additional insight to this ongoing issue is provided in an extremely informative commentary provided by Scheid et al, in which they present theoretical evidence suggesting that there may be consequential psychological impacts of mask wearing on the basic psychological needs of competence, autonomy, and relatedness. Which may contribute to the controversy associated with mask use. It is also important to consider that such subjective experiences caused by mask wearing have been demonstrated to be exacerbated when physical exertion is performed at intensities above activities of daily living, such as during incremental aerobic or resistance exercise.
Currently, the CDC identifies age > 65, BMI > 30, diabetes, smoking, chronic obstructive pulmonary disease, heart conditions, or an immunocompromised state as risk factors for severe illness from COVID-19. Research conducted by Barkley et al, revealed that university closure increased sedentary behavior in all study participants, but only decreased physical activity in individuals who were the most active pre-cancellation. Highlighting concerns that pandemic-related closure of facilities such as gyms, which are designed for physical activity may disproportionately impact a more active population. Increased sedentary behavior and reduced physical activity will likely exacerbate these known risk factors for severe illness from COVID-19, and contribute to overloading our healthcare systems . While it is still recommended that adults of all ages should achieve 150-300 minutes of moderate or 75-150 minutes of vigorous (or an equivalent combination) physical activity per week, along with at least 2 days per week of muscle strengthening activities. Unfortunately, evidence based guidelines have not yet been developed to guide universal mask use during exercise and sporting events.
In this proposed randomized controlled cross-over study, we aim to evaluate in non-COVID-19 infected and otherwise healthy young-to-middle aged adults whether compared with performing resistance exercise (RE) with no mask (NM), 1) are there effects of wearing a surgical mask on physiological or psychological responses during RE that limit peak force or work performed in an exercise session, and 2) does wearing a surgical mask during resistance exercise yield clinically relevant and dangerous absolute indications warranting early exercise termination. Isokinetic testing can be used to provide valid, reliable, objective measure of a muscle's performance and offers significant clinical controls to simulate a resistance training workout. The lever arm speed measuring muscular output by the participant can be adjusted depending on the desired number of repetitions or duration test performed. Various skeletal muscle metabolic systems could be stressed depending on the effort and duration of time under tension, making it an efficient and reliable method for the assessment of muscle performance under various environmental conditions, including wearing a mask during a resistance training workout. To our knowledge this is the first study to assess the effects of wearing protective nose and face covering on resistance exercise capacity, estimate arterial oxyhemoglobin saturation (SpO2), and degree of discomfort.
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 20 participants |
Allocation: | Randomized |
Intervention Model: | Crossover Assignment |
Intervention Model Description: | This is a prospective study conducted using a randomized-control crossover design where participants will complete resistance exercise (RE) protocol utilizing a Biodex System 4 and Advantage V5 software with a standard leg attachment, on 2 separate days with at least 48 hours and no greater than seven days between tests. |
Masking: | None (Open Label) |
Masking Description: | Participants will perform a RE protocol under 2 different conditions, once without a mask and once while wearing a surgical mask. A coin flip wil be utlize to minimize the possibility of familiarization or training effects, and maintain complete randomness of the assignment of which RE conditions is performed first, in addition to which leg is tested first. This simple randomization method to determine the assignment will follow (heads = No mask, tails = surgical mask and heads = dominant leg 1st, tails = nondominant leg 1st, on the 1st and 2nd coin toss, respectively). Study participants will be asked which leg they prefer to kick a ball with to identify their dominant leg for data collection purposes |
Primary Purpose: | Prevention |
Official Title: | Effects of Surgical Mask Use on Peak Torque, Total Work and Interset Fatigability During Isokinetic Strength Testing |
Actual Study Start Date : | January 12, 2021 |
Actual Primary Completion Date : | May 21, 2021 |
Actual Study Completion Date : | May 21, 2021 |

Arm | Intervention/treatment |
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Active Comparator: No Mask
Will not wear a mask
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Other: Resistance Exercise
Participants will perform for each leg, 3 sets comprised of 15 repetitions set to 180 degrees per second of an isokinetic, concentric knee extension and flexion. Resulting in a 20 second long working set (10 seconds extension, 10 seconds flexion), per set. Each set will be followed by a 90 second period of recovery. After completing 3 sets on initial leg, testing will be set up for second leg. |
Experimental: Surgical mask
Will wear a surgical nose and face covering
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Other: Resistance Exercise
Participants will perform for each leg, 3 sets comprised of 15 repetitions set to 180 degrees per second of an isokinetic, concentric knee extension and flexion. Resulting in a 20 second long working set (10 seconds extension, 10 seconds flexion), per set. Each set will be followed by a 90 second period of recovery. After completing 3 sets on initial leg, testing will be set up for second leg. |
- Evaluate the effects of wearing a surgical face mask while performing resistance exercise on average peak force and total work performed. [ Time Frame: 1 week ]For this we will utilize the Biodex system to measure average peak torque (highest force output in a repetition) and total work (muscle's cumulative ability to produce force throughout range of motion for the entire set of repetitions). Working Hypothesis: There will not be a statistically significant difference of peak torque and total work while wearing a mask compared without a mask.
- Identify changes in the level of discomfort experienced while wearing a surgical mask during resistance exercise. [ Time Frame: 1 week ]For this, subjective experience of wearing or not wearing a facial covering will be evaluated at both pre and post- exercise utilizing a perceptions instrument questionnaire (12,16,20). Working hypothesis: Participants performing resistance training while wearing surgical mask covering their nose and mouth with experience an increased perception of elevated breathing resistance.

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Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | Yes |
Inclusion Criteria:
- Age > 18
- Study inclusion criteria required potential participants must be apparently healthy without a history of any chronic disease (including absence of exercise induced asthma),
- Asymptomatic and without previous positive COVID-19 test
- Demonstrate no orthopedic or medical limitation that could be the cause of exercise termination
Exclusion Criteria:
- Pregnancy

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04706299
United States, Ohio | |
Cleveland Clinic Sports Health | |
Garfield Heights, Ohio, United States, 44125 |
Principal Investigator: | Matthew Kampert | Staff Physician |
Responsible Party: | Matthew Kampert, Staff Physician, The Cleveland Clinic |
ClinicalTrials.gov Identifier: | NCT04706299 |
Other Study ID Numbers: |
20-1303 |
First Posted: | January 12, 2021 Key Record Dates |
Last Update Posted: | May 24, 2021 |
Last Verified: | May 2021 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |
Exercise Face Mask COVID-19 Resistance Training |
COVID-19 Respiratory Tract Infections Infections Pneumonia, Viral Pneumonia Virus Diseases |
Coronavirus Infections Coronaviridae Infections Nidovirales Infections RNA Virus Infections Lung Diseases Respiratory Tract Diseases |