N/A N=10 Randomized Health Services Research

"Facemask Use During High-intensity Interval Exercise in Temperate and Hot Environments"

Hypoxemia · Physiological Stress

Bottom Line

View on ClinicalTrials.gov: NCT05143801 ↗

Enrolled (actual)

Serious AEs

0.0%

Results posted

Apr 2022

Primary outcome: Primary: Average Heart Rate Over the Course of High-intensity Interval Exercise — 144; 143; 148; 149 beats per minute — p=0.003

Study Design & Population

Study type: Interventional
Phase: N/A
Interventions: High-intensity interval exercise with surgical face mask in a temperate environment (Device); High-intensity interval exercise with surgical face mask in a hot environment (Device); High-intensity interval exercise without using a surgical face mask in a hot environment (Other); High-intensity interval exercise without using a surgical face mask in a temperate environment (Other)
Age: Adult, Older Adult · 18+ yrs
Sex: All
Sponsor: University of New Mexico
Primary completion: Jun 2021

Outcome Measures

Outcome	Result	p-value
PRIMARY Average Heart Rate Over the Course of High-intensity Interval Exercise	144; 143; 148; 149	0.003 sig
PRIMARY Average Stroke Volume Over the Course of High-intensity Interval Exercise	109.9; 109.2; 104.5; 101.5	0.117
PRIMARY Average Cardiac Output Over the Course of High-intensity Interval Exercise	15.7; 15.8; 15.3; 16.5	0.749
PRIMARY Peak Core Temperature	37.76; 37.64; 37.65; 37.71	0.789
PRIMARY Change From Baseline (Rest) in Core Temperature to the End of Exercise	0.77; 0.54; 0.56; 0.64	0.394
PRIMARY Sweat Rate During Exercise	2097; 1921; 2262; 1793	0.960
PRIMARY Dehydration After Exercise	-0.76; -0.77; -0.81; -0.67	0.786
PRIMARY Lactate at 5-minutes Post Exercise	4.3; 4.2; 4.9; 4.5	0.134
PRIMARY Average Blood Oxygen Saturation Over the Course of High-intensity Interval Exercise	93.5; 93.7; 93.8; 94.0	0.461
PRIMARY Average Muscle Tissue Oxygenation During the High-intensity Portions of the Exercise Session	31.0; 31.4; 23.5; 34.7	0.466
PRIMARY Average Muscle Tissue Oxygenation During the Active Rest Portions of the Exercise Session	56.7; 58.8; 55.8; 62.0	0.375
PRIMARY Average Change in Muscle Tissue Oxygenation Between the Active Rest and High Intensity Portions Over the Course of High-intensity Interval Exercise.	25.6; 27.5; 32.4; 27.4	0.290
PRIMARY Average Perceived Dyspnea Score Over the Course of High-intensity Interval Exercise	14; 44; 18; 58	0.018 sig
PRIMARY Peak Thermal Sensation Over the Course of High-intensity Interval Exercise	5.9; 5.9; 6.5; 6.6	<0.001 sig
PRIMARY Average Thermal Sensation Over the Course of High-intensity Interval Exercise	5.3; 5.4; 6.5; 6.6	<0.001 sig
PRIMARY Peak Rating of Perceived Exertion Over the Course of High-intensity Interval Exercise	15; 15; 15; 16	0.089
PRIMARY Averaged Rating of Perceived Exertion Over the Course of High-intensity Interval Exercise	13.3; 13.3; 13.5; 14.3	0.024 sig
PRIMARY Peak Heart Rate Over the Course of High-intensity Interval Exercise	164; 164; 169; 169	0.012 sig

Summary

To investigate surgical mask use and high-intensity interval exercise across different environmental conditions.

Eligibility Criteria

Inclusion Criteria

18 years of age or older and, are able to both speak and read in English.
Physically active and used to high-intensity exercise.
No known serious medical conditions.

Exclusion Criteria

Vulnerable populations such as children, minors, pregnant women, and intellectually challenged individuals.
Those with cardiovascular, renal, metabolic, or chronic respiratory disease, smokers or those who have quit smoking less than 6 months ago, and those who use an inhaler to control for exercise-induced asthma.
In addition, exclusion criteria include participants who show any signs or symptoms of COVID-19 and have had exposure to anyone with COVID-19 symptoms or any person that has tested positive for COVID-19.

View full record on ClinicalTrials.gov →

Data sourced from ClinicalTrials.gov (NCT05143801). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication.