Performing moderate to severe activity is safe and tolerable for healthy youth while wearing a cloth facemask

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Marticorena, Felipe Miguel ; Barreto, Gabriel Castanho ; Guardieiro, Natalia Mendes ; Esteves, Gabriel Perri ; Oliveira, Tamires Nunes ; de Oliveira, Luana Farias ; Pinto, Ana Lucia de Sa ; Riani, Luiz ; Prado, Danilo Mendes ; Saunders, Bryan ; Gualano, Bruno

• Document type: Journal article
• Source: PLoS One; v. 18, n. 3, p. 11-pg., 2023-03-06.

Abstract

ObjectiveTo investigate if a cloth facemask could affect physiological and perceptual responses to exercise at distinct exercise intensities in healthy young individuals. MethodsNine participants (sex, female/male: 6/3; age: 13 +/- 1 years; VO2peak: 44.5 +/- 5.5 mL/kg/min) underwent a progressive square-wave test at four intensities: (1) 80% of ventilatory anaerobic threshold (VAT), (2) VAT, and (3) 40% between VAT and _VO2peak wearing a triple-layered cloth facemask or not. Participants then completed a final stage to exhaustion at a running speed equivalent to the maximum achieved during the cardio-respiratory exercise test (Peak). Physiological, metabolic, and perceptual measures were measured. ResultsMask did not affect spirometry (forced vital capacity, peak expiratory flow, forced expiratory volume; all p >= 0.27), respiratory (inspiratory capacity, end-expiratory volume [EELV] to functional vital capacity ratio, EELV, respiratory frequency [Rf], tidal volume [VT], Rf/VT, end tidal carbo dioxide pressure, ventilatory equivalent to carbon dioxide ratio; all p >= 0.196), hemodynamic (heart rate, systolic and diastolic blood pressure; all p > 0.41), ratings of perceived exertion (p = 0.04) or metabolic measures (lactate; p = 0.78) at rest or at any exercise intensity. ConclusionsThis study shows that performing moderate to severe activity is safe and tolerable for healthy youth while wearing a cloth facemask. (AU)

• FAPESP's process: 21/05847-8 - Placebo effect on sports and cognitive performance after conditioning to caffeine supplementation
• Grantee: Felipe Miguel Marticorena
• Support Opportunities: Scholarships in Brazil - Doctorate (Direct)
• FAPESP's process: 16/50438-0 - Nutritional suplementation and exercise to optimize exercise performance: focus on individual responses and a step towards personalized sports nutrition
• Grantee: Bryan Saunders
• Support Opportunities: Research Grants - Young Investigators Grants
• FAPESP's process: 20/12036-3 - The influence of the CYP1A2 polymorphism on the physiological responses and performance following acute supplementation with caffeine
• Grantee: Gabriel Henrique Castanho Barreto
• Support Opportunities: Scholarships in Brazil - Doctorate (Direct)
• FAPESP's process: 17/13552-2 - Reducing sedentary time in clinical populations: the take a stand for health study
• Grantee: Bruno Gualano
• Support Opportunities: Research Projects - Thematic Grants
• FAPESP's process: 20/07860-9 - The influence of exercise training on bone health in patients taking high doses of glucocorticoids
• Grantee: Gabriel Perri Esteves
• Support Opportunities: Scholarships in Brazil - Doctorate (Direct)
• FAPESP's process: 20/04368-6 - Effect of open-placebo on performance of trained cyclists
• Grantee: Tamires Nunes Oliveira
• Support Opportunities: Scholarships in Brazil - Scientific Initiation