Use of Masks on Metabolic Parameters and Inspiratory Muscle Strength During Aerobic Exercise

Not Applicable

Completed

• Conditions: Masks
• Interventions: Diagnostic Test: steady intensity aerobic test of 30 minutes long

• Registration Number: NCT04832893
• Lead Sponsor: Universidad Francisco de Vitoria

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.

Detailed Description

Not available

Study Timeline

• Status Verified: 2021-04
• Study First Submitted: 2021-04-02
• Study First Submitted QC: 2021-04-02
• Study First Posted: 2021-04-06
• Study Start: 2021-04-12
• Primary Completion: 2021-05-03
• Study Completion: 2021-05-03
• Last Update Submitted: 2021-05-12
• Last Update Posted: 2021-05-13

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 30

Inclusion Criteria

• carrying out at least 2 days of physical activity per week

Exclusion Criteria

• cardiac disease
• pulmonary disease
• chronic inflammatory disease
• sedentary behaviour

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: CROSSOVER

Arm && Interventions

Group	Intervention	Description
Use of surgical mask	steady intensity aerobic test of 30 minutes long	Using of surgical mask during the 30 minutes test
no mask	steady intensity aerobic test of 30 minutes long	The 30 minutes test will be carried out without mask
Use of FFP2 respirator	steady intensity aerobic test of 30 minutes long	Using of FFP2 respirator during the 30 minutes test

Primary Outcome Measures

Name	Time	Method
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 Outcome Measures

Name	Time	Method
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
oxygen saturation	change from baseline after 10 minutes, 20 minutes and 30 minutes during the test	oxygen saturation will be measured in %
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
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
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

Trial Locations

Locations (1)

Universidad Francisco de Vitoria; 🇪🇸 Pozuelo de Alarcón, Madrid, Spain