The effect of an airflow restriction mask (ARM) on metabolic, ventilatory, and electromyographic responses to continuous cycling exercise

This study analyzed the physiological adjustments caused by the use of the Elevation training mask® (2.0), an airflow restriction mask (ARM) during continuous exercise. Eighteen physically active participants (12 men and 6 women) were randomized to two protocols: continuous exercise with mask (CE-AR...

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Bibliographic Details
Published in:PloS one 2020-08, Vol.15 (8), p.e0237010-e0237010
Main Authors: Barbieri, João Francisco, Gáspari, Arthur Fernandes, Teodoro, Cassia Lopes, Motta, Leonardo, Castaño, Luz Albany Arcila, Bertuzzi, Romulo, Bernades, Celene Fernandes, Chacon-Mikahil, Mara Patrícia Traina, de Moraes, Antonio Carlos
Format: Article
Language:English
Subjects:
Acid-base status
Adult
Air flow
Airflow
Arm
Barbieri, Arthur
Biology and Life Sciences
Breathing Exercises - methods
Carbon dioxide
Carbon Dioxide - blood
Carbon dioxide concentration
Cycles
Cycling
Electromyography
EMG
Exercise
Exercise - physiology
Exercise Test - methods
Female
Funding
Gas analysis
Gases
Healthy Volunteers
Hematocrit
Humans
Hypoxia
Hypoxia - metabolism
Laboratories
Lactates
Lactic acid
Lung - metabolism
Male
Masks
Maximum power
Medicine and Health Sciences
Metabolism
Metabolites
Methods
Muscle strength
Muscles
Myoelectricity
Oxygen
Oxygen - blood
Oxygen consumption
Oxygen Consumption - physiology
Oxygen content
Oxygen saturation
Oxygen uptake
Physical education
Physical fitness
Physical Sciences
Physiological aspects
Physiological research
Pulmonary Ventilation - physiology
Quadriceps muscle
Research and Analysis Methods
Respiration
Respiratory equipment
Respiratory Function Tests
Saturation
Software
Sport science
Strengthening exercises
Studies
Training
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Summary:This study analyzed the physiological adjustments caused by the use of the Elevation training mask® (2.0), an airflow restriction mask (ARM) during continuous exercise. Eighteen physically active participants (12 men and 6 women) were randomized to two protocols: continuous exercise with mask (CE-ARM) and continuous exercise without mask (CE). Exercise consisted of cycling for 20 minutes at 60% of maximum power. Metabolic variables, lactate, and gas concentration were obtained from arterialized blood samples at pre and post exercise. Continuous expired gases and myoelectric activity of the quadriceps were performed at rest and during the test. We observed no reduction in oxygen saturation in CE-ARM, leading to lower pH, higher carbon dioxide, and greater hematocrit (all p
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0237010