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

Author

João Francisco Barbieri, Arthur Fernandes Gáspari, Cassia Lopes Teodoro, Leonardo Motta, Luz Albany Arcila Castaño, Romulo Bertuzzi, Celene Fernandes Bernades, Mara Patrícia Traina Chacon-Mikahil, and Antonio Carlos de Moraes

Subjects
Medicine, Science
Abstract

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

Published
2020
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2. The effect of an airflow restriction mask (ARM) on metabolic, ventilatory, and electromyographic responses to continuous cycling exercise

Author

Arthur Fernandes Gáspari, Romulo Bertuzzi, Cassia Lopes Teodoro, Luz Albany Arcila Castaño, Leonardo Rodrigues Motta, Celene Fernandes Bernades, João Francisco Barbieri, Mara Patrícia Traina Chacon-Mikahil, and Antonio Carlos de Moraes

Subjects
Male, Pulmonology, Physiology, Electromyography, Hematocrit, Oxygen, chemistry.chemical_compound, 0302 clinical medicine, Medicine and Health Sciences, Public and Occupational Health, 030212 general & internal medicine, Hypoxia, Lung, Oxygen saturation (medicine), Multidisciplinary, medicine.diagnostic_test, Respiration, Masks, Sports Science, Healthy Volunteers, Body Fluids, Respiratory Function Tests, Chemistry, Blood, Bioassays and Physiological Analysis, Carbon dioxide, Physical Sciences, Cardiology, Medicine, Female, METABOLISMO, medicine.symptom, Anatomy, Muscle Electrophysiology, Research Article, Chemical Elements, Adult, medicine.medical_specialty, Science, chemistry.chemical_element, Research and Analysis Methods, Breathing Exercises, 03 medical and health sciences, Oxygen Consumption, Internal medicine, Medical Hypoxia, medicine, Humans, Exercise physiology, Sports and Exercise Medicine, Exercise, business.industry, Electrophysiological Techniques, Chemical Compounds, Biology and Life Sciences, Correction, 030229 sport sciences, Physical Activity, Cell Biology, Hypoxia (medical), Carbon Dioxide, chemistry, Physical Fitness, Exercise Test, business, Physiological Processes, Pulmonary Ventilation
Abstract

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

Published
2021

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