NCT04789603

Brief Summary

Since the beginning of the pandemic caused by SARC-CoV 2, more than 81 million cases have been diagnosed and caused around 1,7 million deaths. Currently, a drug is being sought for the treatment of coronavirus. The worldwide effort to create an effective and safe COVID-19 vaccine is beginning to yield results. Several vaccines now have been authorized around the globe; many more remain in development. Nonetheless, in the absence of effective pharmacological treatment and given the virus's transmission capacity, different alternatives have been proposed to stop the transmission of the virus. Therefore, these preventive measures against transmission are expected to remain in force for some time. The transmission of the virus occurs from person-to-person; different studies conclude that transmission occurs by aerosols from respiratory droplets. The optimal distance between people to stop person-to-person transmission is uncertain. For this reason and given that there is no effective drug, transmission prevention is of great importance especially for pandemic mitigation in community settings. The World Health Organization (WHO) established simple precautions to prevent the spread of the virus such as physical distancing, wearing a mask, keeping rooms well ventilated, avoiding crowds, cleaning your hands, and coughing into a bent elbow or tissue. For this reason, the use of the mask has been proposed in several countries, being mandatory in many of them, for use in the health environment and daily use. The WHO recommends different types of masks depending on the person, where it will be used, or the population incidence in the area. Wearing a medical /surgical mask is recommended for people over 60, those who have underlying medical conditions, feel unwell, and/or look after an ill family member. For health workers, respirator masks (such as FFP2, FFP3, N95, N99) should be used in settings where procedures are generating aerosols. The use of a mask could imply an inspiratory and expiratory restraint and generate a feeling of discomfort in many people. It is responsible for an increase in the inspiratory and expiratory pressures generated. This feeling of discomfort and the increment of pressures causes shallow and forced breathing and increases the respiratory accessory musculature activation. Person et al. observed that the subjects who used a mask felt dyspnea clinically and significantly higher than those who did not use it. However, to our knowledge, no study has analyzed the parameters of physical effort, respiratory parameters, self-perceived dyspnea, and muscle activation using different types of masks in healthy subjects. For this reason, the present study hypothesis is that there are no changes between wearing and not-wearing a mask (surgical or N-95) in the effort and ventilatory parameters, even though there may be an increase in the tone of the cervical muscles or the perception of dyspnea using a face mask. This study aims to observe the effect that the surgical mask and the N-95 mask have in the distance walked, in the oxygenometry, in the heart rate, in the sensation of dyspnea, and the tone of the inspiratory accessory muscles during the 6 minutes walking test. Procedure After verifying that the subjects meet the inclusion criteria and sign the consent, they will be given a registration number. An investigator will observe the number in a random list and included the participant in one of the three groups (without a mask, with a surgical mask, and with N95 mask). This researcher will make an initial registration of demographic data (gender, age, weight, height, cardiorespiratory pathology, smoker, number of cigarettes per day, a sport performed, hours of daily sport, and days of sport per week). Before the test, all the subjects will have to remain for 30 minutes without a mask, breathing normally. This phase will be called the resting phase. Subsequently, the subjects will go to the area where the 6MWT will be carried out. Each one of them will be performed the test according to the group to which they will be assigned. An investigator, blinded to the subsequent assessment, will encourage the participants to take the 6MWT according to the recommendations mentioned above. After performing the 6MWT, all subjects will go to the assessment area. All the subjects will wear a surgical mask so that the researcher can not know to which group they have been assigned. Besides, this researcher will not have access to the registration number or the 6-minute walking test area. At the end of each resting phase, SpO2 and baseline HR will be recorded. After every 6MWT, the HR, SpO2, and self-perceived dyspnea will be recorded. The muscle tone will also be assessed with the MyotonPRO in middle scalene and SCM. Subjects will have the option of retaking the test, going through all the phases mentioned above.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
50

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started May 2021

Shorter than P25 for not_applicable

Geographic Reach
1 country

2 active sites

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

March 4, 2021

Completed
5 days until next milestone

First Posted

Study publicly available on registry

March 9, 2021

Completed
2 months until next milestone

Study Start

First participant enrolled

May 10, 2021

Completed
22 days until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2021

Completed
Last Updated

May 11, 2021

Status Verified

March 1, 2021

Enrollment Period

22 days

First QC Date

March 4, 2021

Last Update Submit

May 10, 2021

Conditions

Keywords

covid-19muscle tonemask

Outcome Measures

Primary Outcomes (1)

  • 6 minutes walk test (minutes)

    The volunteers had to walk as fast as possible without running for 6 minutes. Each minute, the subjects will be encouraged to continue at the same pace and not stop

    Change between baseline (immediately before intervention) and post intervention (immediately after intervention)

Secondary Outcomes (6)

  • Dyspnea using the visual analogue scale (VAS) (cms)

    Change between baseline(immediately before intervention) and post intervention (immediately after intervention)

  • Heart Rate (b/min)

    Change between baseline(immediately before intervention) and post intervention (immediately after intervention)

  • Transcutaneous oxygen saturation (% of saturation)

    Change between baseline(immediately before intervention) and post intervention (immediately after intervention)

  • Frequency Muscle tone with MyotonePRO device (Hz)

    Change between baseline and post intervention (1 month), after 3 months and after 6 months

  • Dynamic Stiffness Muscle tone with MyotonePRO device (N/m)

    Change between baseline and post intervention (1 month), after 3 months and after 6 months

  • +1 more secondary outcomes

Study Arms (3)

Without Mask Group

ACTIVE COMPARATOR

Patients who will perform the 6-min walk test without mask

Other: 6-min-walk without mask

Surgical Mask

ACTIVE COMPARATOR

Patients who will perform the 6-min walk test with surgical mask

Other: 6-min-walk surgical mask

Fpp2 Mask

EXPERIMENTAL

Patients who will perform the 6-min walk test with Fpp2 mask

Other: 6-min-walk Fpp2

Interventions

To walk as fast as possible without running for 6 minutes with surgical mask

Surgical Mask

To walk as fast as possible without running for 6 minutes with Fpp2 mask

Fpp2 Mask

To walk as fast as possible without running for 6 minutes without mask

Without Mask Group

Eligibility Criteria

Age18 Years - 75 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age\> 18 years
  • Being able to perform the 6 min-walk-test-

You may not qualify if:

  • Cardiac-respiratory diseases
  • Red flags.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Universitat Internacional de Catalunya

Sant Cugat del Vallès, Barcelona, 08195, Spain

COMPLETED

Universitat Internacional de Catalunya

Sant Cugat del Vallès, Spain

RECRUITING

MeSH Terms

Conditions

Lung DiseasesCOVID-19

Interventions

WalkingMasks

Condition Hierarchy (Ancestors)

Respiratory Tract DiseasesPneumonia, ViralPneumoniaRespiratory Tract InfectionsInfectionsVirus DiseasesCoronavirus InfectionsCoronaviridae InfectionsNidovirales InfectionsRNA Virus Infections

Intervention Hierarchy (Ancestors)

LocomotionMovementMusculoskeletal Physiological PhenomenaMusculoskeletal and Neural Physiological PhenomenaExerciseMotor ActivitySurgical AttireEquipment and Supplies, HospitalEquipment and SuppliesProtective DevicesPersonal Protective EquipmentSurgical EquipmentManufactured MaterialsTechnology, Industry, and Agriculture

Study Officials

  • Albert Pérez-Bellmunt, PhD

    Universitat Internacional de Catalunya

    STUDY DIRECTOR

Central Study Contacts

Jacobo Rodríguez-Sanz, PhD

CONTACT

Carlos López-de-Celis, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Masking Details
For randomization a computer software (www.random.org) will be used.
Purpose
HEALTH SERVICES RESEARCH
Intervention Model
CROSSOVER
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

March 4, 2021

First Posted

March 9, 2021

Study Start

May 10, 2021

Primary Completion

June 1, 2021

Study Completion

June 1, 2021

Last Updated

May 11, 2021

Record last verified: 2021-03

Data Sharing

IPD Sharing
Will not share

Locations