Masks
Conditions
Brief summary
The purpose of this study will be to assess the effects of the use of masks on inspiratory muscle strength, metabolic parameters, heart rate, subjective perception of effort and the sensation of dyspnea before, during and after an aerobic test of 30 minutes long and a fixed load at lactate threshold. A randomized study of repeated measures will be carried out. A total sample of 35 active participants will be recruited. All participants will carried out a lactate threshold test and then 3 visits to the laboratory (separated at least 48 hours from each other) in order to perform 3 test of 30 minutes long without mask, with a surgical mask or with a FFP2 respirator (in a randomized order) at an intensity around lactate threshold intensity. Maximal inspiratory pressure, oxygen saturation, heart rate, blood lactate concentration, subjective perception of effort and dyspnea will be assessed before, during and after the 3 fixed intensity tests.
Interventions
DIAGNOSTIC_TESTsteady intensity aerobic test of 30 minutes long
the use of different type of masks during an aerobic exercise
Sponsors
Universidad Francisco de Vitoria
Study design
Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
OTHER
Masking
SINGLE (Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
Yes
Inclusion criteria
* carrying out at least 2 days of physical activity per week
Exclusion criteria
* cardiac disease * pulmonary disease * chronic inflammatory disease * sedentary behaviour
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Inspiratory muscle strength | change from baseline inspiratory muscle strength after the 30 minutes test | Inspiratory muscle strength will be measured in mmHg with a Power-breathe device |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| lactate concentrations | change from baseline after 10 minutes, 20 minutes and 30 minutes during the test | lactate concentration will be measured in mmol/L with a Lactate Pro 2 device |
| oxygen saturation | change from baseline after 10 minutes, 20 minutes and 30 minutes during the test | oxygen saturation will be measured in % |
| heart rate | change from baseline after 10 minutes, 20 minutes and 30 minutes during the test | heart rate will be measured in beats per minute with a polar H10 device |
| rate of perceived effort | change from baseline after 10 minutes, 20 minutes and 30 minutes during the test | rate of perceived effort will be obtained through the Borg´ scale |
| sensation of dyspnea | change from baseline after 10 minutes, 20 minutes and 30 minutes during the test | sensation of dyspnea will be obtained through a visual analog scale from 0 to 10 points |
Countries
Spain
Outcome results
None listed